Home / 18,678,478.57-27,991,380.50-8,820,023.13

Finding the Fourth Proportional to 18,678,478.57, 27,991,380.50 and 8,820,023.13

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Solution

The fourth proportional to 18,678,478.57, 27,991,380.50 and 8,820,023.13 is: 13,217,598.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,478.57 : 27,991,380.50 = 8,820,023.13 : x
  2. Step 2: Convert to fraction form
    18,678,478.57/27,991,380.50 = 8,820,023.13/x
  3. Step 3: Cross multiply
    18,678,478.57x = 27,991,380.50 × 8,820,023.13
  4. Step 4: Simplify right side
    18,678,478.57x = 246,884,623,450,631
  5. Step 5: Solve for x
    x = 246,884,623,450,631/18,678,478.57
  6. Step 6: Final answer
    x = 13,217,598.13

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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.