Home / 100,150,220.80-150,225,331.20-91,062,579.70

Finding the Fourth Proportional to 100,150,220.80, 150,225,331.20 and 91,062,579.70

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Solution

The fourth proportional to 100,150,220.80, 150,225,331.20 and 91,062,579.70 is: 136,593,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,150,220.80 : 150,225,331.20 = 91,062,579.70 : x
  2. Step 2: Convert to fraction form
    100,150,220.80/150,225,331.20 = 91,062,579.70/x
  3. Step 3: Cross multiply
    100,150,220.80x = 150,225,331.20 × 91,062,579.70
  4. Step 4: Simplify right side
    100,150,220.80x = 13,679,906,195,358,896
  5. Step 5: Solve for x
    x = 13,679,906,195,358,896/100,150,220.80
  6. Step 6: Final answer
    x = 136,593,869.55

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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.