Home / 187,958,625.71-281,951,527.13-78,673,885.79

Finding the Fourth Proportional to 187,958,625.71, 281,951,527.13 and 78,673,885.79

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Solution

The fourth proportional to 187,958,625.71, 281,951,527.13 and 78,673,885.79 is: 118,016,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,958,625.71 : 281,951,527.13 = 78,673,885.79 : x
  2. Step 2: Convert to fraction form
    187,958,625.71/281,951,527.13 = 78,673,885.79/x
  3. Step 3: Cross multiply
    187,958,625.71x = 281,951,527.13 × 78,673,885.79
  4. Step 4: Simplify right side
    187,958,625.71x = 22,182,222,243,348,340
  5. Step 5: Solve for x
    x = 22,182,222,243,348,340/187,958,625.71
  6. Step 6: Final answer
    x = 118,016,516.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.