Home / 129,487,108.20-194,230,662.30-123,515,140.20

Finding the Fourth Proportional to 129,487,108.20, 194,230,662.30 and 123,515,140.20

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Solution

The fourth proportional to 129,487,108.20, 194,230,662.30 and 123,515,140.20 is: 185,272,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,108.20 : 194,230,662.30 = 123,515,140.20 : x
  2. Step 2: Convert to fraction form
    129,487,108.20/194,230,662.30 = 123,515,140.20/x
  3. Step 3: Cross multiply
    129,487,108.20x = 194,230,662.30 × 123,515,140.20
  4. Step 4: Simplify right side
    129,487,108.20x = 23,990,427,485,123,356
  5. Step 5: Solve for x
    x = 23,990,427,485,123,356/129,487,108.20
  6. Step 6: Final answer
    x = 185,272,710.30

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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.