Home / 13,872,040.90-20,809,616.55-4,287,343.30

Finding the Fourth Proportional to 13,872,040.90, 20,809,616.55 and 4,287,343.30

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Solution

The fourth proportional to 13,872,040.90, 20,809,616.55 and 4,287,343.30 is: 6,431,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,040.90 : 20,809,616.55 = 4,287,343.30 : x
  2. Step 2: Convert to fraction form
    13,872,040.90/20,809,616.55 = 4,287,343.30/x
  3. Step 3: Cross multiply
    13,872,040.90x = 20,809,616.55 × 4,287,343.30
  4. Step 4: Simplify right side
    13,872,040.90x = 89,217,970,091,211.61
  5. Step 5: Solve for x
    x = 89,217,970,091,211.61/13,872,040.90
  6. Step 6: Final answer
    x = 6,431,495.61

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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.