Home / 6,419,356.77-8,859,618.60-3,972,755.79

Finding the Fourth Proportional to 6,419,356.77, 8,859,618.60 and 3,972,755.79

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Solution

The fourth proportional to 6,419,356.77, 8,859,618.60 and 3,972,755.79 is: 5,482,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419,356.77 : 8,859,618.60 = 3,972,755.79 : x
  2. Step 2: Convert to fraction form
    6,419,356.77/8,859,618.60 = 3,972,755.79/x
  3. Step 3: Cross multiply
    6,419,356.77x = 8,859,618.60 × 3,972,755.79
  4. Step 4: Simplify right side
    6,419,356.77x = 35,197,101,090,341.70
  5. Step 5: Solve for x
    x = 35,197,101,090,341.70/6,419,356.77
  6. Step 6: Final answer
    x = 5,482,963.85

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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.