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Finding the Fourth Proportional to 100,609,372.80, 150,914,059.20 and 75,100,204.80

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Solution

The fourth proportional to 100,609,372.80, 150,914,059.20 and 75,100,204.80 is: 112,650,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609,372.80 : 150,914,059.20 = 75,100,204.80 : x
  2. Step 2: Convert to fraction form
    100,609,372.80/150,914,059.20 = 75,100,204.80/x
  3. Step 3: Cross multiply
    100,609,372.80x = 150,914,059.20 × 75,100,204.80
  4. Step 4: Simplify right side
    100,609,372.80x = 11,333,676,753,119,322
  5. Step 5: Solve for x
    x = 11,333,676,753,119,322/100,609,372.80
  6. Step 6: Final answer
    x = 112,650,307.20

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1.5x scale

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.