Home / 13,108,961,420.40-19,663,442,130.60-9,114,225,711.60

Finding the Fourth Proportional to 13,108,961,420.40, 19,663,442,130.60 and 9,114,225,711.60

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Solution

The fourth proportional to 13,108,961,420.40, 19,663,442,130.60 and 9,114,225,711.60 is: 13,671,338,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108,961,420.40 : 19,663,442,130.60 = 9,114,225,711.60 : x
  2. Step 2: Convert to fraction form
    13,108,961,420.40/19,663,442,130.60 = 9,114,225,711.60/x
  3. Step 3: Cross multiply
    13,108,961,420.40x = 19,663,442,130.60 × 9,114,225,711.60
  4. Step 4: Simplify right side
    13,108,961,420.40x = 179,217,049,845,273,198,592
  5. Step 5: Solve for x
    x = 179,217,049,845,273,198,592/13,108,961,420.40
  6. Step 6: Final answer
    x = 13,671,338,567.40

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Half scale
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Double scale
Find fourth proportional to 13,108,961,421.40, 19,663,442,132.10 and 9,114,225,712.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.