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Finding the Fourth Proportional to 8,991,231.40, 13,486,847.10 and 8,841,932.20

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Solution

The fourth proportional to 8,991,231.40, 13,486,847.10 and 8,841,932.20 is: 13,262,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,231.40 : 13,486,847.10 = 8,841,932.20 : x
  2. Step 2: Convert to fraction form
    8,991,231.40/13,486,847.10 = 8,841,932.20/x
  3. Step 3: Cross multiply
    8,991,231.40x = 13,486,847.10 × 8,841,932.20
  4. Step 4: Simplify right side
    8,991,231.40x = 119,249,787,649,966.61
  5. Step 5: Solve for x
    x = 119,249,787,649,966.61/8,991,231.40
  6. Step 6: Final answer
    x = 13,262,898.30

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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.