Home / 409,315,909.20-613,973,863.80-225,012,170.40

Finding the Fourth Proportional to 409,315,909.20, 613,973,863.80 and 225,012,170.40

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Solution

The fourth proportional to 409,315,909.20, 613,973,863.80 and 225,012,170.40 is: 337,518,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,315,909.20 : 613,973,863.80 = 225,012,170.40 : x
  2. Step 2: Convert to fraction form
    409,315,909.20/613,973,863.80 = 225,012,170.40/x
  3. Step 3: Cross multiply
    409,315,909.20x = 613,973,863.80 × 225,012,170.40
  4. Step 4: Simplify right side
    409,315,909.20x = 138,151,591,662,511,984
  5. Step 5: Solve for x
    x = 138,151,591,662,511,984/409,315,909.20
  6. Step 6: Final answer
    x = 337,518,255.60

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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.