Home / 1,278,278,500.91-1,915,722,675.90-656,468,616.06

Finding the Fourth Proportional to 1,278,278,500.91, 1,915,722,675.90 and 656,468,616.06

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Solution

The fourth proportional to 1,278,278,500.91, 1,915,722,675.90 and 656,468,616.06 is: 983,832,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,278,500.91 : 1,915,722,675.90 = 656,468,616.06 : x
  2. Step 2: Convert to fraction form
    1,278,278,500.91/1,915,722,675.90 = 656,468,616.06/x
  3. Step 3: Cross multiply
    1,278,278,500.91x = 1,915,722,675.90 × 656,468,616.06
  4. Step 4: Simplify right side
    1,278,278,500.91x = 1,257,611,813,802,832,896
  5. Step 5: Solve for x
    x = 1,257,611,813,802,832,896/1,278,278,500.91
  6. Step 6: Final answer
    x = 983,832,406.56

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1.5x scale

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.