Home / 126,324,005.60-189,486,008.40-111,496,801.70

Finding the Fourth Proportional to 126,324,005.60, 189,486,008.40 and 111,496,801.70

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Solution

The fourth proportional to 126,324,005.60, 189,486,008.40 and 111,496,801.70 is: 167,245,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,324,005.60 : 189,486,008.40 = 111,496,801.70 : x
  2. Step 2: Convert to fraction form
    126,324,005.60/189,486,008.40 = 111,496,801.70/x
  3. Step 3: Cross multiply
    126,324,005.60x = 189,486,008.40 × 111,496,801.70
  4. Step 4: Simplify right side
    126,324,005.60x = 21,127,083,903,499,336
  5. Step 5: Solve for x
    x = 21,127,083,903,499,336/126,324,005.60
  6. Step 6: Final answer
    x = 167,245,202.55

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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.