Home / 409,318,513.20-613,977,769.80-225,014,774.40

Finding the Fourth Proportional to 409,318,513.20, 613,977,769.80 and 225,014,774.40

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Solution

The fourth proportional to 409,318,513.20, 613,977,769.80 and 225,014,774.40 is: 337,522,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,318,513.20 : 613,977,769.80 = 225,014,774.40 : x
  2. Step 2: Convert to fraction form
    409,318,513.20/613,977,769.80 = 225,014,774.40/x
  3. Step 3: Cross multiply
    409,318,513.20x = 613,977,769.80 × 225,014,774.40
  4. Step 4: Simplify right side
    409,318,513.20x = 138,154,069,358,162,128
  5. Step 5: Solve for x
    x = 138,154,069,358,162,128/409,318,513.20
  6. Step 6: Final answer
    x = 337,522,161.60

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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.