Home / 71,482,699.04-107,206,333.84-20,365,160.72

Finding the Fourth Proportional to 71,482,699.04, 107,206,333.84 and 20,365,160.72

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Solution

The fourth proportional to 71,482,699.04, 107,206,333.84 and 20,365,160.72 is: 30,542,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,482,699.04 : 107,206,333.84 = 20,365,160.72 : x
  2. Step 2: Convert to fraction form
    71,482,699.04/107,206,333.84 = 20,365,160.72/x
  3. Step 3: Cross multiply
    71,482,699.04x = 107,206,333.84 × 20,365,160.72
  4. Step 4: Simplify right side
    71,482,699.04x = 2,183,274,218,853,574.75
  5. Step 5: Solve for x
    x = 2,183,274,218,853,574.75/71,482,699.04
  6. Step 6: Final answer
    x = 30,542,694.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.