Home / 1,123,728,765.60-1,682,234,820.36-679,727,760.24

Finding the Fourth Proportional to 1,123,728,765.60, 1,682,234,820.36 and 679,727,760.24

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Solution

The fourth proportional to 1,123,728,765.60, 1,682,234,820.36 and 679,727,760.24 is: 1,017,560,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,728,765.60 : 1,682,234,820.36 = 679,727,760.24 : x
  2. Step 2: Convert to fraction form
    1,123,728,765.60/1,682,234,820.36 = 679,727,760.24/x
  3. Step 3: Cross multiply
    1,123,728,765.60x = 1,682,234,820.36 × 679,727,760.24
  4. Step 4: Simplify right side
    1,123,728,765.60x = 1,143,461,706,641,041,536
  5. Step 5: Solve for x
    x = 1,143,461,706,641,041,536/1,123,728,765.60
  6. Step 6: Final answer
    x = 1,017,560,234.86

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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.