Home / 18,389,906.10-27,584,859.15-15,520,124.70

Finding the Fourth Proportional to 18,389,906.10, 27,584,859.15 and 15,520,124.70

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Solution

The fourth proportional to 18,389,906.10, 27,584,859.15 and 15,520,124.70 is: 23,280,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,906.10 : 27,584,859.15 = 15,520,124.70 : x
  2. Step 2: Convert to fraction form
    18,389,906.10/27,584,859.15 = 15,520,124.70/x
  3. Step 3: Cross multiply
    18,389,906.10x = 27,584,859.15 × 15,520,124.70
  4. Step 4: Simplify right side
    18,389,906.10x = 428,120,453,839,935.94
  5. Step 5: Solve for x
    x = 428,120,453,839,935.94/18,389,906.10
  6. Step 6: Final answer
    x = 23,280,187.05

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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.