Home / 71,482,696.16-107,206,329.53-20,365,157.84

Finding the Fourth Proportional to 71,482,696.16, 107,206,329.53 and 20,365,157.84

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Solution

The fourth proportional to 71,482,696.16, 107,206,329.53 and 20,365,157.84 is: 30,542,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,482,696.16 : 107,206,329.53 = 20,365,157.84 : x
  2. Step 2: Convert to fraction form
    71,482,696.16/107,206,329.53 = 20,365,157.84/x
  3. Step 3: Cross multiply
    71,482,696.16x = 107,206,329.53 × 20,365,157.84
  4. Step 4: Simplify right side
    71,482,696.16x = 2,183,273,821,840,384.25
  5. Step 5: Solve for x
    x = 2,183,273,821,840,384.25/71,482,696.16
  6. Step 6: Final answer
    x = 30,542,689.90

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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.