Home / 13,590,700.29-18,755,169.03-7,479,128.79

Finding the Fourth Proportional to 13,590,700.29, 18,755,169.03 and 7,479,128.79

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Solution

The fourth proportional to 13,590,700.29, 18,755,169.03 and 7,479,128.79 is: 10,321,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,700.29 : 18,755,169.03 = 7,479,128.79 : x
  2. Step 2: Convert to fraction form
    13,590,700.29/18,755,169.03 = 7,479,128.79/x
  3. Step 3: Cross multiply
    13,590,700.29x = 18,755,169.03 × 7,479,128.79
  4. Step 4: Simplify right side
    13,590,700.29x = 140,272,324,653,589.39
  5. Step 5: Solve for x
    x = 140,272,324,653,589.39/13,590,700.29
  6. Step 6: Final answer
    x = 10,321,199.18

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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.