Home / 86,022,000.20-129,033,000.30-28,523,145.80

Finding the Fourth Proportional to 86,022,000.20, 129,033,000.30 and 28,523,145.80

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Solution

The fourth proportional to 86,022,000.20, 129,033,000.30 and 28,523,145.80 is: 42,784,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,022,000.20 : 129,033,000.30 = 28,523,145.80 : x
  2. Step 2: Convert to fraction form
    86,022,000.20/129,033,000.30 = 28,523,145.80/x
  3. Step 3: Cross multiply
    86,022,000.20x = 129,033,000.30 × 28,523,145.80
  4. Step 4: Simplify right side
    86,022,000.20x = 3,680,427,080,568,344
  5. Step 5: Solve for x
    x = 3,680,427,080,568,344/86,022,000.20
  6. Step 6: Final answer
    x = 42,784,718.70

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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.