Home / 143,856,426.20-215,784,639.30-82,382,480.60

Finding the Fourth Proportional to 143,856,426.20, 215,784,639.30 and 82,382,480.60

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Solution

The fourth proportional to 143,856,426.20, 215,784,639.30 and 82,382,480.60 is: 123,573,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,426.20 : 215,784,639.30 = 82,382,480.60 : x
  2. Step 2: Convert to fraction form
    143,856,426.20/215,784,639.30 = 82,382,480.60/x
  3. Step 3: Cross multiply
    143,856,426.20x = 215,784,639.30 × 82,382,480.60
  4. Step 4: Simplify right side
    143,856,426.20x = 17,776,873,860,910,248
  5. Step 5: Solve for x
    x = 17,776,873,860,910,248/143,856,426.20
  6. Step 6: Final answer
    x = 123,573,720.90

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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.