Home / 412,047,245.70-618,070,868.55-356,564,805.30

Finding the Fourth Proportional to 412,047,245.70, 618,070,868.55 and 356,564,805.30

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Solution

The fourth proportional to 412,047,245.70, 618,070,868.55 and 356,564,805.30 is: 534,847,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,047,245.70 : 618,070,868.55 = 356,564,805.30 : x
  2. Step 2: Convert to fraction form
    412,047,245.70/618,070,868.55 = 356,564,805.30/x
  3. Step 3: Cross multiply
    412,047,245.70x = 618,070,868.55 × 356,564,805.30
  4. Step 4: Simplify right side
    412,047,245.70x = 220,382,318,906,132,640
  5. Step 5: Solve for x
    x = 220,382,318,906,132,640/412,047,245.70
  6. Step 6: Final answer
    x = 534,847,207.95

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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.