Home / 187,013,391.40-280,520,087.10-84,976,719.40

Finding the Fourth Proportional to 187,013,391.40, 280,520,087.10 and 84,976,719.40

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Solution

The fourth proportional to 187,013,391.40, 280,520,087.10 and 84,976,719.40 is: 127,465,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,013,391.40 : 280,520,087.10 = 84,976,719.40 : x
  2. Step 2: Convert to fraction form
    187,013,391.40/280,520,087.10 = 84,976,719.40/x
  3. Step 3: Cross multiply
    187,013,391.40x = 280,520,087.10 × 84,976,719.40
  4. Step 4: Simplify right side
    187,013,391.40x = 23,837,676,727,560,264
  5. Step 5: Solve for x
    x = 23,837,676,727,560,264/187,013,391.40
  6. Step 6: Final answer
    x = 127,465,079.10

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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.