Home / 8,749,147.60-13,123,721.40-5,210,203.60

Finding the Fourth Proportional to 8,749,147.60, 13,123,721.40 and 5,210,203.60

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Solution

The fourth proportional to 8,749,147.60, 13,123,721.40 and 5,210,203.60 is: 7,815,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,147.60 : 13,123,721.40 = 5,210,203.60 : x
  2. Step 2: Convert to fraction form
    8,749,147.60/13,123,721.40 = 5,210,203.60/x
  3. Step 3: Cross multiply
    8,749,147.60x = 13,123,721.40 × 5,210,203.60
  4. Step 4: Simplify right side
    8,749,147.60x = 68,377,260,483,677.04
  5. Step 5: Solve for x
    x = 68,377,260,483,677.04/8,749,147.60
  6. Step 6: Final answer
    x = 7,815,305.40

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Double scale
Find fourth proportional to 8,749,148.60, 13,123,722.90 and 5,210,204.60
Similar ratio
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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.