Home / 18,145,348.20-27,218,022.30-12,098,730.60

Finding the Fourth Proportional to 18,145,348.20, 27,218,022.30 and 12,098,730.60

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Solution

The fourth proportional to 18,145,348.20, 27,218,022.30 and 12,098,730.60 is: 18,148,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,348.20 : 27,218,022.30 = 12,098,730.60 : x
  2. Step 2: Convert to fraction form
    18,145,348.20/27,218,022.30 = 12,098,730.60/x
  3. Step 3: Cross multiply
    18,145,348.20x = 27,218,022.30 × 12,098,730.60
  4. Step 4: Simplify right side
    18,145,348.20x = 329,303,519,272,492.38
  5. Step 5: Solve for x
    x = 329,303,519,272,492.38/18,145,348.20
  6. Step 6: Final answer
    x = 18,148,095.90

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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.