Home / 415,257,000.30-622,885,500.45-408,799,992.15

Finding the Fourth Proportional to 415,257,000.30, 622,885,500.45 and 408,799,992.15

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Solution

The fourth proportional to 415,257,000.30, 622,885,500.45 and 408,799,992.15 is: 613,199,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,257,000.30 : 622,885,500.45 = 408,799,992.15 : x
  2. Step 2: Convert to fraction form
    415,257,000.30/622,885,500.45 = 408,799,992.15/x
  3. Step 3: Cross multiply
    415,257,000.30x = 622,885,500.45 × 408,799,992.15
  4. Step 4: Simplify right side
    415,257,000.30x = 254,635,587,694,308,832
  5. Step 5: Solve for x
    x = 254,635,587,694,308,832/415,257,000.30
  6. Step 6: Final answer
    x = 613,199,988.23

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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.