Home / 18,145,781.70-27,218,672.55-8,068,085.70

Finding the Fourth Proportional to 18,145,781.70, 27,218,672.55 and 8,068,085.70

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Solution

The fourth proportional to 18,145,781.70, 27,218,672.55 and 8,068,085.70 is: 12,102,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,781.70 : 27,218,672.55 = 8,068,085.70 : x
  2. Step 2: Convert to fraction form
    18,145,781.70/27,218,672.55 = 8,068,085.70/x
  3. Step 3: Cross multiply
    18,145,781.70x = 27,218,672.55 × 8,068,085.70
  4. Step 4: Simplify right side
    18,145,781.70x = 219,602,582,773,637.53
  5. Step 5: Solve for x
    x = 219,602,582,773,637.53/18,145,781.70
  6. Step 6: Final answer
    x = 12,102,128.55

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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.