Home / 118,367,997.40-177,551,996.10-85,867,427.80

Finding the Fourth Proportional to 118,367,997.40, 177,551,996.10 and 85,867,427.80

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Solution

The fourth proportional to 118,367,997.40, 177,551,996.10 and 85,867,427.80 is: 128,801,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367,997.40 : 177,551,996.10 = 85,867,427.80 : x
  2. Step 2: Convert to fraction form
    118,367,997.40/177,551,996.10 = 85,867,427.80/x
  3. Step 3: Cross multiply
    118,367,997.40x = 177,551,996.10 × 85,867,427.80
  4. Step 4: Simplify right side
    118,367,997.40x = 15,245,933,205,862,630
  5. Step 5: Solve for x
    x = 15,245,933,205,862,630/118,367,997.40
  6. Step 6: Final answer
    x = 128,801,141.70

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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.