Home / 265,734,221.20-398,601,331.80-74,257,997.20

Finding the Fourth Proportional to 265,734,221.20, 398,601,331.80 and 74,257,997.20

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Solution

The fourth proportional to 265,734,221.20, 398,601,331.80 and 74,257,997.20 is: 111,386,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,734,221.20 : 398,601,331.80 = 74,257,997.20 : x
  2. Step 2: Convert to fraction form
    265,734,221.20/398,601,331.80 = 74,257,997.20/x
  3. Step 3: Cross multiply
    265,734,221.20x = 398,601,331.80 × 74,257,997.20
  4. Step 4: Simplify right side
    265,734,221.20x = 29,599,336,580,720,672
  5. Step 5: Solve for x
    x = 29,599,336,580,720,672/265,734,221.20
  6. Step 6: Final answer
    x = 111,386,995.80

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Similar ratio
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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.