Home / 18,690,147.30-28,035,220.95-12,265,616.10

Finding the Fourth Proportional to 18,690,147.30, 28,035,220.95 and 12,265,616.10

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Solution

The fourth proportional to 18,690,147.30, 28,035,220.95 and 12,265,616.10 is: 18,398,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690,147.30 : 28,035,220.95 = 12,265,616.10 : x
  2. Step 2: Convert to fraction form
    18,690,147.30/28,035,220.95 = 12,265,616.10/x
  3. Step 3: Cross multiply
    18,690,147.30x = 28,035,220.95 × 12,265,616.10
  4. Step 4: Simplify right side
    18,690,147.30x = 343,869,257,451,377.25
  5. Step 5: Solve for x
    x = 343,869,257,451,377.25/18,690,147.30
  6. Step 6: Final answer
    x = 18,398,424.15

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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.