Home / 129,433,915.20-194,150,872.80-109,026,580.80

Finding the Fourth Proportional to 129,433,915.20, 194,150,872.80 and 109,026,580.80

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Solution

The fourth proportional to 129,433,915.20, 194,150,872.80 and 109,026,580.80 is: 163,539,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,433,915.20 : 194,150,872.80 = 109,026,580.80 : x
  2. Step 2: Convert to fraction form
    129,433,915.20/194,150,872.80 = 109,026,580.80/x
  3. Step 3: Cross multiply
    129,433,915.20x = 194,150,872.80 × 109,026,580.80
  4. Step 4: Simplify right side
    129,433,915.20x = 21,167,605,820,719,724
  5. Step 5: Solve for x
    x = 21,167,605,820,719,724/129,433,915.20
  6. Step 6: Final answer
    x = 163,539,871.20

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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.