Home / 10,987,446.20-16,488,167.70-6,438,486.20

Finding the Fourth Proportional to 10,987,446.20, 16,488,167.70 and 6,438,486.20

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Solution

The fourth proportional to 10,987,446.20, 16,488,167.70 and 6,438,486.20 is: 9,661,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,446.20 : 16,488,167.70 = 6,438,486.20 : x
  2. Step 2: Convert to fraction form
    10,987,446.20/16,488,167.70 = 6,438,486.20/x
  3. Step 3: Cross multiply
    10,987,446.20x = 16,488,167.70 × 6,438,486.20
  4. Step 4: Simplify right side
    10,987,446.20x = 106,158,840,199,735.73
  5. Step 5: Solve for x
    x = 106,158,840,199,735.73/10,987,446.20
  6. Step 6: Final answer
    x = 9,661,830.26

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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.