Home / 7,920,697.18-11,882,387.07-2,731,897.78

Finding the Fourth Proportional to 7,920,697.18, 11,882,387.07 and 2,731,897.78

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Solution

The fourth proportional to 7,920,697.18, 11,882,387.07 and 2,731,897.78 is: 4,098,309.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,697.18 : 11,882,387.07 = 2,731,897.78 : x
  2. Step 2: Convert to fraction form
    7,920,697.18/11,882,387.07 = 2,731,897.78/x
  3. Step 3: Cross multiply
    7,920,697.18x = 11,882,387.07 × 2,731,897.78
  4. Step 4: Simplify right side
    7,920,697.18x = 32,461,466,857,633.70
  5. Step 5: Solve for x
    x = 32,461,466,857,633.70/7,920,697.18
  6. Step 6: Final answer
    x = 4,098,309.29

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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.