Home / 129,486,799.20-194,230,198.80-88,672,130.40

Finding the Fourth Proportional to 129,486,799.20, 194,230,198.80 and 88,672,130.40

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Solution

The fourth proportional to 129,486,799.20, 194,230,198.80 and 88,672,130.40 is: 133,008,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,486,799.20 : 194,230,198.80 = 88,672,130.40 : x
  2. Step 2: Convert to fraction form
    129,486,799.20/194,230,198.80 = 88,672,130.40/x
  3. Step 3: Cross multiply
    129,486,799.20x = 194,230,198.80 × 88,672,130.40
  4. Step 4: Simplify right side
    129,486,799.20x = 17,222,805,515,611,526
  5. Step 5: Solve for x
    x = 17,222,805,515,611,526/129,486,799.20
  6. Step 6: Final answer
    x = 133,008,195.60

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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.