Home / 155,989,961.32-215,490,373.27-124,586,780.53

Finding the Fourth Proportional to 155,989,961.32, 215,490,373.27 and 124,586,780.53

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Solution

The fourth proportional to 155,989,961.32, 215,490,373.27 and 124,586,780.53 is: 172,108,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,989,961.32 : 215,490,373.27 = 124,586,780.53 : x
  2. Step 2: Convert to fraction form
    155,989,961.32/215,490,373.27 = 124,586,780.53/x
  3. Step 3: Cross multiply
    155,989,961.32x = 215,490,373.27 × 124,586,780.53
  4. Step 4: Simplify right side
    155,989,961.32x = 26,847,251,840,917,272
  5. Step 5: Solve for x
    x = 26,847,251,840,917,272/155,989,961.32
  6. Step 6: Final answer
    x = 172,108,843.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.