Home / 72,427,101.10-108,640,651.65-38,414,877.10

Finding the Fourth Proportional to 72,427,101.10, 108,640,651.65 and 38,414,877.10

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Solution

The fourth proportional to 72,427,101.10, 108,640,651.65 and 38,414,877.10 is: 57,622,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,427,101.10 : 108,640,651.65 = 38,414,877.10 : x
  2. Step 2: Convert to fraction form
    72,427,101.10/108,640,651.65 = 38,414,877.10/x
  3. Step 3: Cross multiply
    72,427,101.10x = 108,640,651.65 × 38,414,877.10
  4. Step 4: Simplify right side
    72,427,101.10x = 4,173,417,281,198,662.50
  5. Step 5: Solve for x
    x = 4,173,417,281,198,662.50/72,427,101.10
  6. Step 6: Final answer
    x = 57,622,315.65

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Double scale
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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.