Home / 138,721,508.37-191,282,304.11-88,406,060.33

Finding the Fourth Proportional to 138,721,508.37, 191,282,304.11 and 88,406,060.33

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Solution

The fourth proportional to 138,721,508.37, 191,282,304.11 and 88,406,060.33 is: 121,902,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,721,508.37 : 191,282,304.11 = 88,406,060.33 : x
  2. Step 2: Convert to fraction form
    138,721,508.37/191,282,304.11 = 88,406,060.33/x
  3. Step 3: Cross multiply
    138,721,508.37x = 191,282,304.11 × 88,406,060.33
  4. Step 4: Simplify right side
    138,721,508.37x = 16,910,514,915,811,624
  5. Step 5: Solve for x
    x = 16,910,514,915,811,624/138,721,508.37
  6. Step 6: Final answer
    x = 121,902,617.08

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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.