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Finding the Fourth Proportional to 265,719,392.80, 398,747,050.80 and 156,544,352.80

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Solution

The fourth proportional to 265,719,392.80, 398,747,050.80 and 156,544,352.80 is: 234,915,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,719,392.80 : 398,747,050.80 = 156,544,352.80 : x
  2. Step 2: Convert to fraction form
    265,719,392.80/398,747,050.80 = 156,544,352.80/x
  3. Step 3: Cross multiply
    265,719,392.80x = 398,747,050.80 × 156,544,352.80
  4. Step 4: Simplify right side
    265,719,392.80x = 62,421,598,998,394,728
  5. Step 5: Solve for x
    x = 62,421,598,998,394,728/265,719,392.80
  6. Step 6: Final answer
    x = 234,915,481.10

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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.