Home / 84,217,510.10-126,326,265.15-71,888,078.90

Finding the Fourth Proportional to 84,217,510.10, 126,326,265.15 and 71,888,078.90

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Solution

The fourth proportional to 84,217,510.10, 126,326,265.15 and 71,888,078.90 is: 107,832,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,217,510.10 : 126,326,265.15 = 71,888,078.90 : x
  2. Step 2: Convert to fraction form
    84,217,510.10/126,326,265.15 = 71,888,078.90/x
  3. Step 3: Cross multiply
    84,217,510.10x = 126,326,265.15 × 71,888,078.90
  4. Step 4: Simplify right side
    84,217,510.10x = 9,081,352,516,245,522
  5. Step 5: Solve for x
    x = 9,081,352,516,245,522/84,217,510.10
  6. Step 6: Final answer
    x = 107,832,118.35

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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.