Home / 126,472,308.12-189,562,078.98-58,171,656.60

Finding the Fourth Proportional to 126,472,308.12, 189,562,078.98 and 58,171,656.60

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Solution

The fourth proportional to 126,472,308.12, 189,562,078.98 and 58,171,656.60 is: 87,190,155.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,472,308.12 : 189,562,078.98 = 58,171,656.60 : x
  2. Step 2: Convert to fraction form
    126,472,308.12/189,562,078.98 = 58,171,656.60/x
  3. Step 3: Cross multiply
    126,472,308.12x = 189,562,078.98 × 58,171,656.60
  4. Step 4: Simplify right side
    126,472,308.12x = 11,027,140,162,806,638
  5. Step 5: Solve for x
    x = 11,027,140,162,806,638/126,472,308.12
  6. Step 6: Final answer
    x = 87,190,155.12

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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.