Home / 12,713,445.80-17,540,586.18-7,279,937.96

Finding the Fourth Proportional to 12,713,445.80, 17,540,586.18 and 7,279,937.96

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Solution

The fourth proportional to 12,713,445.80, 17,540,586.18 and 7,279,937.96 is: 10,044,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713,445.80 : 17,540,586.18 = 7,279,937.96 : x
  2. Step 2: Convert to fraction form
    12,713,445.80/17,540,586.18 = 7,279,937.96/x
  3. Step 3: Cross multiply
    12,713,445.80x = 17,540,586.18 × 7,279,937.96
  4. Step 4: Simplify right side
    12,713,445.80x = 127,694,379,172,433.39
  5. Step 5: Solve for x
    x = 127,694,379,172,433.39/12,713,445.80
  6. Step 6: Final answer
    x = 10,044,041.65

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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.