Home / 18,092,000.70-27,138,001.05-12,990,167.10

Finding the Fourth Proportional to 18,092,000.70, 27,138,001.05 and 12,990,167.10

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Solution

The fourth proportional to 18,092,000.70, 27,138,001.05 and 12,990,167.10 is: 19,485,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092,000.70 : 27,138,001.05 = 12,990,167.10 : x
  2. Step 2: Convert to fraction form
    18,092,000.70/27,138,001.05 = 12,990,167.10/x
  3. Step 3: Cross multiply
    18,092,000.70x = 27,138,001.05 × 12,990,167.10
  4. Step 4: Simplify right side
    18,092,000.70x = 352,527,168,399,475.44
  5. Step 5: Solve for x
    x = 352,527,168,399,475.44/18,092,000.70
  6. Step 6: Final answer
    x = 19,485,250.65

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1.5x scale

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.