Home / 78,654,083.92-108,549,098.28-43,378,788.84

Finding the Fourth Proportional to 78,654,083.92, 108,549,098.28 and 43,378,788.84

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Solution

The fourth proportional to 78,654,083.92, 108,549,098.28 and 43,378,788.84 is: 59,866,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,654,083.92 : 108,549,098.28 = 43,378,788.84 : x
  2. Step 2: Convert to fraction form
    78,654,083.92/108,549,098.28 = 43,378,788.84/x
  3. Step 3: Cross multiply
    78,654,083.92x = 108,549,098.28 × 43,378,788.84
  4. Step 4: Simplify right side
    78,654,083.92x = 4,708,728,413,060,528
  5. Step 5: Solve for x
    x = 4,708,728,413,060,528/78,654,083.92
  6. Step 6: Final answer
    x = 59,866,292.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.