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Finding the Fourth Proportional to 18,388,724.08, 25,376,439.04 and 10,658,250.40

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Solution

The fourth proportional to 18,388,724.08, 25,376,439.04 and 10,658,250.40 is: 14,708,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388,724.08 : 25,376,439.04 = 10,658,250.40 : x
  2. Step 2: Convert to fraction form
    18,388,724.08/25,376,439.04 = 10,658,250.40/x
  3. Step 3: Cross multiply
    18,388,724.08x = 25,376,439.04 × 10,658,250.40
  4. Step 4: Simplify right side
    18,388,724.08x = 270,468,441,548,655.62
  5. Step 5: Solve for x
    x = 270,468,441,548,655.62/18,388,724.08
  6. Step 6: Final answer
    x = 14,708,385.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.