Home / 78,654,079.92-108,549,092.76-43,378,784.85

Finding the Fourth Proportional to 78,654,079.92, 108,549,092.76 and 43,378,784.85

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Solution

The fourth proportional to 78,654,079.92, 108,549,092.76 and 43,378,784.85 is: 59,866,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,654,079.92 : 108,549,092.76 = 43,378,784.85 : x
  2. Step 2: Convert to fraction form
    78,654,079.92/108,549,092.76 = 43,378,784.85/x
  3. Step 3: Cross multiply
    78,654,079.92x = 108,549,092.76 × 43,378,784.85
  4. Step 4: Simplify right side
    78,654,079.92x = 4,708,727,740,498,733
  5. Step 5: Solve for x
    x = 4,708,727,740,498,733/78,654,079.92
  6. Step 6: Final answer
    x = 59,866,287.23

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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.