Home / 13,145,738.89-18,141,127.35-7,344,520.62

Finding the Fourth Proportional to 13,145,738.89, 18,141,127.35 and 7,344,520.62

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Solution

The fourth proportional to 13,145,738.89, 18,141,127.35 and 7,344,520.62 is: 10,135,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,738.89 : 18,141,127.35 = 7,344,520.62 : x
  2. Step 2: Convert to fraction form
    13,145,738.89/18,141,127.35 = 7,344,520.62/x
  3. Step 3: Cross multiply
    13,145,738.89x = 18,141,127.35 × 7,344,520.62
  4. Step 4: Simplify right side
    13,145,738.89x = 133,237,883,892,120.97
  5. Step 5: Solve for x
    x = 133,237,883,892,120.97/13,145,738.89
  6. Step 6: Final answer
    x = 10,135,442.75

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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.