Home / 386,086,684,882.21-532,799,712,105.30-212,471,824,333.73

Finding the Fourth Proportional to 386,086,684,882.21, 532,799,712,105.30 and 212,471,824,333.73

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Solution

The fourth proportional to 386,086,684,882.21, 532,799,712,105.30 and 212,471,824,333.73 is: 293,211,165,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,086,684,882.21 : 532,799,712,105.30 = 212,471,824,333.73 : x
  2. Step 2: Convert to fraction form
    386,086,684,882.21/532,799,712,105.30 = 212,471,824,333.73/x
  3. Step 3: Cross multiply
    386,086,684,882.21x = 532,799,712,105.30 × 212,471,824,333.73
  4. Step 4: Simplify right side
    386,086,684,882.21x = 113,204,926,835,499,227,676,672
  5. Step 5: Solve for x
    x = 113,204,926,835,499,227,676,672/386,086,684,882.21
  6. Step 6: Final answer
    x = 293,211,165,440.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.