Home / 84,217,513.10-126,326,269.65-71,888,081.90

Finding the Fourth Proportional to 84,217,513.10, 126,326,269.65 and 71,888,081.90

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Solution

The fourth proportional to 84,217,513.10, 126,326,269.65 and 71,888,081.90 is: 107,832,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,217,513.10 : 126,326,269.65 = 71,888,081.90 : x
  2. Step 2: Convert to fraction form
    84,217,513.10/126,326,269.65 = 71,888,081.90/x
  3. Step 3: Cross multiply
    84,217,513.10x = 126,326,269.65 × 71,888,081.90
  4. Step 4: Simplify right side
    84,217,513.10x = 9,081,353,218,720,686
  5. Step 5: Solve for x
    x = 9,081,353,218,720,686/84,217,513.10
  6. Step 6: Final answer
    x = 107,832,122.85

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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.