Home / 42,531,866.30-63,797,799.45-19,815,059.90

Finding the Fourth Proportional to 42,531,866.30, 63,797,799.45 and 19,815,059.90

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Solution

The fourth proportional to 42,531,866.30, 63,797,799.45 and 19,815,059.90 is: 29,722,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531,866.30 : 63,797,799.45 = 19,815,059.90 : x
  2. Step 2: Convert to fraction form
    42,531,866.30/63,797,799.45 = 19,815,059.90/x
  3. Step 3: Cross multiply
    42,531,866.30x = 63,797,799.45 × 19,815,059.90
  4. Step 4: Simplify right side
    42,531,866.30x = 1,264,157,217,589,937
  5. Step 5: Solve for x
    x = 1,264,157,217,589,937/42,531,866.30
  6. Step 6: Final answer
    x = 29,722,589.85

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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.