Home / 693,418,247.87-1,040,484,973.73-324,990,629.84

Finding the Fourth Proportional to 693,418,247.87, 1,040,484,973.73 and 324,990,629.84

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Solution

The fourth proportional to 693,418,247.87, 1,040,484,973.73 and 324,990,629.84 is: 487,653,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,418,247.87 : 1,040,484,973.73 = 324,990,629.84 : x
  2. Step 2: Convert to fraction form
    693,418,247.87/1,040,484,973.73 = 324,990,629.84/x
  3. Step 3: Cross multiply
    693,418,247.87x = 1,040,484,973.73 × 324,990,629.84
  4. Step 4: Simplify right side
    693,418,247.87x = 338,147,866,949,943,552
  5. Step 5: Solve for x
    x = 338,147,866,949,943,552/693,418,247.87
  6. Step 6: Final answer
    x = 487,653,545.30

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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.