Home / 409,318,481.20-613,977,721.80-225,014,742.40

Finding the Fourth Proportional to 409,318,481.20, 613,977,721.80 and 225,014,742.40

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Solution

The fourth proportional to 409,318,481.20, 613,977,721.80 and 225,014,742.40 is: 337,522,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,318,481.20 : 613,977,721.80 = 225,014,742.40 : x
  2. Step 2: Convert to fraction form
    409,318,481.20/613,977,721.80 = 225,014,742.40/x
  3. Step 3: Cross multiply
    409,318,481.20x = 613,977,721.80 × 225,014,742.40
  4. Step 4: Simplify right side
    409,318,481.20x = 138,154,038,910,165,856
  5. Step 5: Solve for x
    x = 138,154,038,910,165,856/409,318,481.20
  6. Step 6: Final answer
    x = 337,522,113.60

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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.