Home / 187,013,387.90-280,520,081.85-84,976,715.90

Finding the Fourth Proportional to 187,013,387.90, 280,520,081.85 and 84,976,715.90

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Solution

The fourth proportional to 187,013,387.90, 280,520,081.85 and 84,976,715.90 is: 127,465,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,013,387.90 : 280,520,081.85 = 84,976,715.90 : x
  2. Step 2: Convert to fraction form
    187,013,387.90/280,520,081.85 = 84,976,715.90/x
  3. Step 3: Cross multiply
    187,013,387.90x = 280,520,081.85 × 84,976,715.90
  4. Step 4: Simplify right side
    187,013,387.90x = 23,837,675,299,612,200
  5. Step 5: Solve for x
    x = 23,837,675,299,612,200/187,013,387.90
  6. Step 6: Final answer
    x = 127,465,073.85

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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.