Home / 13,129,319.50-18,117,723.82-7,328,475.22

Finding the Fourth Proportional to 13,129,319.50, 18,117,723.82 and 7,328,475.22

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Solution

The fourth proportional to 13,129,319.50, 18,117,723.82 and 7,328,475.22 is: 10,112,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,319.50 : 18,117,723.82 = 7,328,475.22 : x
  2. Step 2: Convert to fraction form
    13,129,319.50/18,117,723.82 = 7,328,475.22/x
  3. Step 3: Cross multiply
    13,129,319.50x = 18,117,723.82 × 7,328,475.22
  4. Step 4: Simplify right side
    13,129,319.50x = 132,775,290,057,673.73
  5. Step 5: Solve for x
    x = 132,775,290,057,673.73/13,129,319.50
  6. Step 6: Final answer
    x = 10,112,884.38

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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.