Home / 7,182,755.13-9,912,120.43-3,919,625.38

Finding the Fourth Proportional to 7,182,755.13, 9,912,120.43 and 3,919,625.38

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Solution

The fourth proportional to 7,182,755.13, 9,912,120.43 and 3,919,625.38 is: 5,409,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,755.13 : 9,912,120.43 = 3,919,625.38 : x
  2. Step 2: Convert to fraction form
    7,182,755.13/9,912,120.43 = 3,919,625.38/x
  3. Step 3: Cross multiply
    7,182,755.13x = 9,912,120.43 × 3,919,625.38
  4. Step 4: Simplify right side
    7,182,755.13x = 38,851,798,787,446.39
  5. Step 5: Solve for x
    x = 38,851,798,787,446.39/7,182,755.13
  6. Step 6: Final answer
    x = 5,409,038.47

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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.