Home / 13,452,977,415.40-20,179,466,123.10-12,779,535,380.20

Finding the Fourth Proportional to 13,452,977,415.40, 20,179,466,123.10 and 12,779,535,380.20

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Solution

The fourth proportional to 13,452,977,415.40, 20,179,466,123.10 and 12,779,535,380.20 is: 19,169,303,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452,977,415.40 : 20,179,466,123.10 = 12,779,535,380.20 : x
  2. Step 2: Convert to fraction form
    13,452,977,415.40/20,179,466,123.10 = 12,779,535,380.20/x
  3. Step 3: Cross multiply
    13,452,977,415.40x = 20,179,466,123.10 × 12,779,535,380.20
  4. Step 4: Simplify right side
    13,452,977,415.40x = 257,884,201,273,703,759,872
  5. Step 5: Solve for x
    x = 257,884,201,273,703,759,872/13,452,977,415.40
  6. Step 6: Final answer
    x = 19,169,303,070.30

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Double scale
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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.