Home / 1,152,328,129.20-1,728,496,678.37-278,928,096.55

Finding the Fourth Proportional to 1,152,328,129.20, 1,728,496,678.37 and 278,928,096.55

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Solution

The fourth proportional to 1,152,328,129.20, 1,728,496,678.37 and 278,928,096.55 is: 418,393,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,328,129.20 : 1,728,496,678.37 = 278,928,096.55 : x
  2. Step 2: Convert to fraction form
    1,152,328,129.20/1,728,496,678.37 = 278,928,096.55/x
  3. Step 3: Cross multiply
    1,152,328,129.20x = 1,728,496,678.37 × 278,928,096.55
  4. Step 4: Simplify right side
    1,152,328,129.20x = 482,126,288,385,025,792
  5. Step 5: Solve for x
    x = 482,126,288,385,025,792/1,152,328,129.20
  6. Step 6: Final answer
    x = 418,393,230.34

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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.