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Finding the Fourth Proportional to 16,919,469.68, 25,388,803.01 and 9,138,287.70

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Solution

The fourth proportional to 16,919,469.68, 25,388,803.01 and 9,138,287.70 is: 13,712,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919,469.68 : 25,388,803.01 = 9,138,287.70 : x
  2. Step 2: Convert to fraction form
    16,919,469.68/25,388,803.01 = 9,138,287.70/x
  3. Step 3: Cross multiply
    16,919,469.68x = 25,388,803.01 × 9,138,287.70
  4. Step 4: Simplify right side
    16,919,469.68x = 232,010,186,286,851.66
  5. Step 5: Solve for x
    x = 232,010,186,286,851.66/16,919,469.68
  6. Step 6: Final answer
    x = 13,712,615.75

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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.