Home / 1,258,795,786.80-1,888,193,680.20-769,019,761.20

Finding the Fourth Proportional to 1,258,795,786.80, 1,888,193,680.20 and 769,019,761.20

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Solution

The fourth proportional to 1,258,795,786.80, 1,888,193,680.20 and 769,019,761.20 is: 1,153,529,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,795,786.80 : 1,888,193,680.20 = 769,019,761.20 : x
  2. Step 2: Convert to fraction form
    1,258,795,786.80/1,888,193,680.20 = 769,019,761.20/x
  3. Step 3: Cross multiply
    1,258,795,786.80x = 1,888,193,680.20 × 769,019,761.20
  4. Step 4: Simplify right side
    1,258,795,786.80x = 1,452,058,253,046,753,280
  5. Step 5: Solve for x
    x = 1,452,058,253,046,753,280/1,258,795,786.80
  6. Step 6: Final answer
    x = 1,153,529,641.80

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Double scale
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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.