Home / 12,090,001.20-18,144,916.20-11,995,522.80

Finding the Fourth Proportional to 12,090,001.20, 18,144,916.20 and 11,995,522.80

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Solution

The fourth proportional to 12,090,001.20, 18,144,916.20 and 11,995,522.80 is: 18,003,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,001.20 : 18,144,916.20 = 11,995,522.80 : x
  2. Step 2: Convert to fraction form
    12,090,001.20/18,144,916.20 = 11,995,522.80/x
  3. Step 3: Cross multiply
    12,090,001.20x = 18,144,916.20 × 11,995,522.80
  4. Step 4: Simplify right side
    12,090,001.20x = 217,657,755,981,189.38
  5. Step 5: Solve for x
    x = 217,657,755,981,189.38/12,090,001.20
  6. Step 6: Final answer
    x = 18,003,121.12

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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.