Home / 126,017,150.40-189,025,725.60-85,202,481.60

Finding the Fourth Proportional to 126,017,150.40, 189,025,725.60 and 85,202,481.60

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Solution

The fourth proportional to 126,017,150.40, 189,025,725.60 and 85,202,481.60 is: 127,803,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,017,150.40 : 189,025,725.60 = 85,202,481.60 : x
  2. Step 2: Convert to fraction form
    126,017,150.40/189,025,725.60 = 85,202,481.60/x
  3. Step 3: Cross multiply
    126,017,150.40x = 189,025,725.60 × 85,202,481.60
  4. Step 4: Simplify right side
    126,017,150.40x = 16,105,460,907,360,648
  5. Step 5: Solve for x
    x = 16,105,460,907,360,648/126,017,150.40
  6. Step 6: Final answer
    x = 127,803,722.40

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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.