Home / 84,274,915.10-126,412,372.65-78,732,182.30

Finding the Fourth Proportional to 84,274,915.10, 126,412,372.65 and 78,732,182.30

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Solution

The fourth proportional to 84,274,915.10, 126,412,372.65 and 78,732,182.30 is: 118,098,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,274,915.10 : 126,412,372.65 = 78,732,182.30 : x
  2. Step 2: Convert to fraction form
    84,274,915.10/126,412,372.65 = 78,732,182.30/x
  3. Step 3: Cross multiply
    84,274,915.10x = 126,412,372.65 × 78,732,182.30
  4. Step 4: Simplify right side
    84,274,915.10x = 9,952,721,968,455,334
  5. Step 5: Solve for x
    x = 9,952,721,968,455,334/84,274,915.10
  6. Step 6: Final answer
    x = 118,098,273.45

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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.