Home / 81,807,777.28-112,894,654.08-45,138,350.08

Finding the Fourth Proportional to 81,807,777.28, 112,894,654.08 and 45,138,350.08

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Solution

The fourth proportional to 81,807,777.28, 112,894,654.08 and 45,138,350.08 is: 62,290,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807,777.28 : 112,894,654.08 = 45,138,350.08 : x
  2. Step 2: Convert to fraction form
    81,807,777.28/112,894,654.08 = 45,138,350.08/x
  3. Step 3: Cross multiply
    81,807,777.28x = 112,894,654.08 × 45,138,350.08
  4. Step 4: Simplify right side
    81,807,777.28x = 5,095,878,418,023,540
  5. Step 5: Solve for x
    x = 5,095,878,418,023,540/81,807,777.28
  6. Step 6: Final answer
    x = 62,290,879.76

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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.