Home / 6,418,928.11-8,859,028.98-3,972,327.16

Finding the Fourth Proportional to 6,418,928.11, 8,859,028.98 and 3,972,327.16

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Solution

The fourth proportional to 6,418,928.11, 8,859,028.98 and 3,972,327.16 is: 5,482,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418,928.11 : 8,859,028.98 = 3,972,327.16 : x
  2. Step 2: Convert to fraction form
    6,418,928.11/8,859,028.98 = 3,972,327.16/x
  3. Step 3: Cross multiply
    6,418,928.11x = 8,859,028.98 × 3,972,327.16
  4. Step 4: Simplify right side
    6,418,928.11x = 35,190,961,428,481.10
  5. Step 5: Solve for x
    x = 35,190,961,428,481.10/6,418,928.11
  6. Step 6: Final answer
    x = 5,482,373.51

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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.