Home / 78,888,526.11-108,876,980.82-45,397,316.89

Finding the Fourth Proportional to 78,888,526.11, 108,876,980.82 and 45,397,316.89

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Solution

The fourth proportional to 78,888,526.11, 108,876,980.82 and 45,397,316.89 is: 62,654,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,526.11 : 108,876,980.82 = 45,397,316.89 : x
  2. Step 2: Convert to fraction form
    78,888,526.11/108,876,980.82 = 45,397,316.89/x
  3. Step 3: Cross multiply
    78,888,526.11x = 108,876,980.82 × 45,397,316.89
  4. Step 4: Simplify right side
    78,888,526.11x = 4,942,722,799,857,456
  5. Step 5: Solve for x
    x = 4,942,722,799,857,456/78,888,526.11
  6. Step 6: Final answer
    x = 62,654,520.80

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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.