Home / 18,390,002.10-27,585,003.15-15,520,220.70

Finding the Fourth Proportional to 18,390,002.10, 27,585,003.15 and 15,520,220.70

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Solution

The fourth proportional to 18,390,002.10, 27,585,003.15 and 15,520,220.70 is: 23,280,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390,002.10 : 27,585,003.15 = 15,520,220.70 : x
  2. Step 2: Convert to fraction form
    18,390,002.10/27,585,003.15 = 15,520,220.70/x
  3. Step 3: Cross multiply
    18,390,002.10x = 27,585,003.15 × 15,520,220.70
  4. Step 4: Simplify right side
    18,390,002.10x = 428,125,336,898,195.19
  5. Step 5: Solve for x
    x = 428,125,336,898,195.19/18,390,002.10
  6. Step 6: Final answer
    x = 23,280,331.05

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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.