Home / 155,278,623.30-232,720,120.80-82,530,255.30

Finding the Fourth Proportional to 155,278,623.30, 232,720,120.80 and 82,530,255.30

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Solution

The fourth proportional to 155,278,623.30, 232,720,120.80 and 82,530,255.30 is: 123,690,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,278,623.30 : 232,720,120.80 = 82,530,255.30 : x
  2. Step 2: Convert to fraction form
    155,278,623.30/232,720,120.80 = 82,530,255.30/x
  3. Step 3: Cross multiply
    155,278,623.30x = 232,720,120.80 × 82,530,255.30
  4. Step 4: Simplify right side
    155,278,623.30x = 19,206,450,983,070,840
  5. Step 5: Solve for x
    x = 19,206,450,983,070,840/155,278,623.30
  6. Step 6: Final answer
    x = 123,690,245.15

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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.