Home / 28,512,136.60-42,736,712.10-15,741,806.20

Finding the Fourth Proportional to 28,512,136.60, 42,736,712.10 and 15,741,806.20

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Solution

The fourth proportional to 28,512,136.60, 42,736,712.10 and 15,741,806.20 is: 23,595,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,136.60 : 42,736,712.10 = 15,741,806.20 : x
  2. Step 2: Convert to fraction form
    28,512,136.60/42,736,712.10 = 15,741,806.20/x
  3. Step 3: Cross multiply
    28,512,136.60x = 42,736,712.10 × 15,741,806.20
  4. Step 4: Simplify right side
    28,512,136.60x = 672,753,039,503,395
  5. Step 5: Solve for x
    x = 672,753,039,503,395/28,512,136.60
  6. Step 6: Final answer
    x = 23,595,321.84

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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.