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Finding the Fourth Proportional to 13,382,892.70, 20,074,339.05 and 9,631,750.30

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Solution

The fourth proportional to 13,382,892.70, 20,074,339.05 and 9,631,750.30 is: 14,447,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382,892.70 : 20,074,339.05 = 9,631,750.30 : x
  2. Step 2: Convert to fraction form
    13,382,892.70/20,074,339.05 = 9,631,750.30/x
  3. Step 3: Cross multiply
    13,382,892.70x = 20,074,339.05 × 9,631,750.30
  4. Step 4: Simplify right side
    13,382,892.70x = 193,351,021,167,139.25
  5. Step 5: Solve for x
    x = 193,351,021,167,139.25/13,382,892.70
  6. Step 6: Final answer
    x = 14,447,625.45

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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.