Home / 18,440,776.89-25,424,614.67-15,120,839.61

Finding the Fourth Proportional to 18,440,776.89, 25,424,614.67 and 15,120,839.61

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Solution

The fourth proportional to 18,440,776.89, 25,424,614.67 and 15,120,839.61 is: 20,847,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440,776.89 : 25,424,614.67 = 15,120,839.61 : x
  2. Step 2: Convert to fraction form
    18,440,776.89/25,424,614.67 = 15,120,839.61/x
  3. Step 3: Cross multiply
    18,440,776.89x = 25,424,614.67 × 15,120,839.61
  4. Step 4: Simplify right side
    18,440,776.89x = 384,441,520,495,518.88
  5. Step 5: Solve for x
    x = 384,441,520,495,518.88/18,440,776.89
  6. Step 6: Final answer
    x = 20,847,360.32

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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.