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Finding the Fourth Proportional to 10,656,019.20, 15,984,028.80 and 3,468,230.40

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Solution

The fourth proportional to 10,656,019.20, 15,984,028.80 and 3,468,230.40 is: 5,202,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,019.20 : 15,984,028.80 = 3,468,230.40 : x
  2. Step 2: Convert to fraction form
    10,656,019.20/15,984,028.80 = 3,468,230.40/x
  3. Step 3: Cross multiply
    10,656,019.20x = 15,984,028.80 × 3,468,230.40
  4. Step 4: Simplify right side
    10,656,019.20x = 55,436,294,598,635.52
  5. Step 5: Solve for x
    x = 55,436,294,598,635.52/10,656,019.20
  6. Step 6: Final answer
    x = 5,202,345.60

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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.