Home / 18,678,207.76-25,784,191.92-12,066,020.21

Finding the Fourth Proportional to 18,678,207.76, 25,784,191.92 and 12,066,020.21

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Solution

The fourth proportional to 18,678,207.76, 25,784,191.92 and 12,066,020.21 is: 16,656,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,207.76 : 25,784,191.92 = 12,066,020.21 : x
  2. Step 2: Convert to fraction form
    18,678,207.76/25,784,191.92 = 12,066,020.21/x
  3. Step 3: Cross multiply
    18,678,207.76x = 25,784,191.92 × 12,066,020.21
  4. Step 4: Simplify right side
    18,678,207.76x = 311,112,580,914,946.75
  5. Step 5: Solve for x
    x = 311,112,580,914,946.75/18,678,207.76
  6. Step 6: Final answer
    x = 16,656,447.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.