Home / 187,272,043.20-280,908,064.80-172,491,422.40

Finding the Fourth Proportional to 187,272,043.20, 280,908,064.80 and 172,491,422.40

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Solution

The fourth proportional to 187,272,043.20, 280,908,064.80 and 172,491,422.40 is: 258,737,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,272,043.20 : 280,908,064.80 = 172,491,422.40 : x
  2. Step 2: Convert to fraction form
    187,272,043.20/280,908,064.80 = 172,491,422.40/x
  3. Step 3: Cross multiply
    187,272,043.20x = 280,908,064.80 × 172,491,422.40
  4. Step 4: Simplify right side
    187,272,043.20x = 48,454,231,660,983,376
  5. Step 5: Solve for x
    x = 48,454,231,660,983,376/187,272,043.20
  6. Step 6: Final answer
    x = 258,737,133.60

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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.