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Finding the Fourth Proportional to 12,481,145.20, 18,693,724.20 and 10,241,657.20

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Solution

The fourth proportional to 12,481,145.20, 18,693,724.20 and 10,241,657.20 is: 15,339,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,145.20 : 18,693,724.20 = 10,241,657.20 : x
  2. Step 2: Convert to fraction form
    12,481,145.20/18,693,724.20 = 10,241,657.20/x
  3. Step 3: Cross multiply
    12,481,145.20x = 18,693,724.20 × 10,241,657.20
  4. Step 4: Simplify right side
    12,481,145.20x = 191,454,715,047,744.22
  5. Step 5: Solve for x
    x = 191,454,715,047,744.22/12,481,145.20
  6. Step 6: Final answer
    x = 15,339,515.08

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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.