Home / 409,318,507.45-613,977,761.18-225,014,768.65

Finding the Fourth Proportional to 409,318,507.45, 613,977,761.18 and 225,014,768.65

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Solution

The fourth proportional to 409,318,507.45, 613,977,761.18 and 225,014,768.65 is: 337,522,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,318,507.45 : 613,977,761.18 = 225,014,768.65 : x
  2. Step 2: Convert to fraction form
    409,318,507.45/613,977,761.18 = 225,014,768.65/x
  3. Step 3: Cross multiply
    409,318,507.45x = 613,977,761.18 × 225,014,768.65
  4. Step 4: Simplify right side
    409,318,507.45x = 138,154,063,888,162,640
  5. Step 5: Solve for x
    x = 138,154,063,888,162,640/409,318,507.45
  6. Step 6: Final answer
    x = 337,522,152.98

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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.