Home / 239,152,107.20-358,728,160.80-218,744,772.80

Finding the Fourth Proportional to 239,152,107.20, 358,728,160.80 and 218,744,772.80

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Solution

The fourth proportional to 239,152,107.20, 358,728,160.80 and 218,744,772.80 is: 328,117,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,152,107.20 : 358,728,160.80 = 218,744,772.80 : x
  2. Step 2: Convert to fraction form
    239,152,107.20/358,728,160.80 = 218,744,772.80/x
  3. Step 3: Cross multiply
    239,152,107.20x = 358,728,160.80 × 218,744,772.80
  4. Step 4: Simplify right side
    239,152,107.20x = 78,469,910,031,157,872
  5. Step 5: Solve for x
    x = 78,469,910,031,157,872/239,152,107.20
  6. Step 6: Final answer
    x = 328,117,159.20

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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.