Home / 137,605,752.81-189,895,965.89-75,726,091.71

Finding the Fourth Proportional to 137,605,752.81, 189,895,965.89 and 75,726,091.71

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Solution

The fourth proportional to 137,605,752.81, 189,895,965.89 and 75,726,091.71 is: 104,502,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,605,752.81 : 189,895,965.89 = 75,726,091.71 : x
  2. Step 2: Convert to fraction form
    137,605,752.81/189,895,965.89 = 75,726,091.71/x
  3. Step 3: Cross multiply
    137,605,752.81x = 189,895,965.89 × 75,726,091.71
  4. Step 4: Simplify right side
    137,605,752.81x = 14,380,079,327,966,540
  5. Step 5: Solve for x
    x = 14,380,079,327,966,540/137,605,752.81
  6. Step 6: Final answer
    x = 104,502,021.42

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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.