Home / 82,019,854.20-123,029,781.30-43,661,623.80

Finding the Fourth Proportional to 82,019,854.20, 123,029,781.30 and 43,661,623.80

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Solution

The fourth proportional to 82,019,854.20, 123,029,781.30 and 43,661,623.80 is: 65,492,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,019,854.20 : 123,029,781.30 = 43,661,623.80 : x
  2. Step 2: Convert to fraction form
    82,019,854.20/123,029,781.30 = 43,661,623.80/x
  3. Step 3: Cross multiply
    82,019,854.20x = 123,029,781.30 × 43,661,623.80
  4. Step 4: Simplify right side
    82,019,854.20x = 5,371,680,027,316,874
  5. Step 5: Solve for x
    x = 5,371,680,027,316,874/82,019,854.20
  6. Step 6: Final answer
    x = 65,492,435.70

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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.