Home / 156,571,915.20-234,857,872.80-142,463,140.80

Finding the Fourth Proportional to 156,571,915.20, 234,857,872.80 and 142,463,140.80

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Solution

The fourth proportional to 156,571,915.20, 234,857,872.80 and 142,463,140.80 is: 213,694,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,571,915.20 : 234,857,872.80 = 142,463,140.80 : x
  2. Step 2: Convert to fraction form
    156,571,915.20/234,857,872.80 = 142,463,140.80/x
  3. Step 3: Cross multiply
    156,571,915.20x = 234,857,872.80 × 142,463,140.80
  4. Step 4: Simplify right side
    156,571,915.20x = 33,458,590,200,694,896
  5. Step 5: Solve for x
    x = 33,458,590,200,694,896/156,571,915.20
  6. Step 6: Final answer
    x = 213,694,711.20

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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.