Home / 84,602,877.20-126,904,753.72-38,512,513.38

Finding the Fourth Proportional to 84,602,877.20, 126,904,753.72 and 38,512,513.38

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Solution

The fourth proportional to 84,602,877.20, 126,904,753.72 and 38,512,513.38 is: 57,768,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602,877.20 : 126,904,753.72 = 38,512,513.38 : x
  2. Step 2: Convert to fraction form
    84,602,877.20/126,904,753.72 = 38,512,513.38/x
  3. Step 3: Cross multiply
    84,602,877.20x = 126,904,753.72 × 38,512,513.38
  4. Step 4: Simplify right side
    84,602,877.20x = 4,887,421,025,627,105
  5. Step 5: Solve for x
    x = 4,887,421,025,627,105/84,602,877.20
  6. Step 6: Final answer
    x = 57,768,969.42

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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.