Home / 13,189,997.92-18,193,108.80-9,278,052.16

Finding the Fourth Proportional to 13,189,997.92, 18,193,108.80 and 9,278,052.16

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Solution

The fourth proportional to 13,189,997.92, 18,193,108.80 and 9,278,052.16 is: 12,797,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,997.92 : 18,193,108.80 = 9,278,052.16 : x
  2. Step 2: Convert to fraction form
    13,189,997.92/18,193,108.80 = 9,278,052.16/x
  3. Step 3: Cross multiply
    13,189,997.92x = 18,193,108.80 × 9,278,052.16
  4. Step 4: Simplify right side
    13,189,997.92x = 168,796,612,398,955.03
  5. Step 5: Solve for x
    x = 168,796,612,398,955.03/13,189,997.92
  6. Step 6: Final answer
    x = 12,797,319.11

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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.