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Finding the Fourth Proportional to 409,451,681.80, 614,177,522.70 and 254,483,486.20

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Solution

The fourth proportional to 409,451,681.80, 614,177,522.70 and 254,483,486.20 is: 381,725,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,451,681.80 : 614,177,522.70 = 254,483,486.20 : x
  2. Step 2: Convert to fraction form
    409,451,681.80/614,177,522.70 = 254,483,486.20/x
  3. Step 3: Cross multiply
    409,451,681.80x = 614,177,522.70 × 254,483,486.20
  4. Step 4: Simplify right side
    409,451,681.80x = 156,298,037,122,375,648
  5. Step 5: Solve for x
    x = 156,298,037,122,375,648/409,451,681.80
  6. Step 6: Final answer
    x = 381,725,229.30

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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.