Home / 87,177,882.96-130,766,988.51-81,850,851.27

Finding the Fourth Proportional to 87,177,882.96, 130,766,988.51 and 81,850,851.27

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Solution

The fourth proportional to 87,177,882.96, 130,766,988.51 and 81,850,851.27 is: 122,776,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,177,882.96 : 130,766,988.51 = 81,850,851.27 : x
  2. Step 2: Convert to fraction form
    87,177,882.96/130,766,988.51 = 81,850,851.27/x
  3. Step 3: Cross multiply
    87,177,882.96x = 130,766,988.51 × 81,850,851.27
  4. Step 4: Simplify right side
    87,177,882.96x = 10,703,389,327,557,808
  5. Step 5: Solve for x
    x = 10,703,389,327,557,808/87,177,882.96
  6. Step 6: Final answer
    x = 122,776,430.95

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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.