Home / 626,680,757.87-864,459,252.99-391,322,855.15

Finding the Fourth Proportional to 626,680,757.87, 864,459,252.99 and 391,322,855.15

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Solution

The fourth proportional to 626,680,757.87, 864,459,252.99 and 391,322,855.15 is: 539,800,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,680,757.87 : 864,459,252.99 = 391,322,855.15 : x
  2. Step 2: Convert to fraction form
    626,680,757.87/864,459,252.99 = 391,322,855.15/x
  3. Step 3: Cross multiply
    626,680,757.87x = 864,459,252.99 × 391,322,855.15
  4. Step 4: Simplify right side
    626,680,757.87x = 338,282,663,036,560,640
  5. Step 5: Solve for x
    x = 338,282,663,036,560,640/626,680,757.87
  6. Step 6: Final answer
    x = 539,800,622.23

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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.