Home / 12,087,549.80-18,131,324.70-10,512,909.80

Finding the Fourth Proportional to 12,087,549.80, 18,131,324.70 and 10,512,909.80

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Solution

The fourth proportional to 12,087,549.80, 18,131,324.70 and 10,512,909.80 is: 15,769,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,549.80 : 18,131,324.70 = 10,512,909.80 : x
  2. Step 2: Convert to fraction form
    12,087,549.80/18,131,324.70 = 10,512,909.80/x
  3. Step 3: Cross multiply
    12,087,549.80x = 18,131,324.70 × 10,512,909.80
  4. Step 4: Simplify right side
    12,087,549.80x = 190,612,981,125,612.06
  5. Step 5: Solve for x
    x = 190,612,981,125,612.06/12,087,549.80
  6. Step 6: Final answer
    x = 15,769,364.70

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Similar ratio
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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.