Home / 121,321,708.50-181,982,562.75-40,542,676.50

Finding the Fourth Proportional to 121,321,708.50, 181,982,562.75 and 40,542,676.50

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Solution

The fourth proportional to 121,321,708.50, 181,982,562.75 and 40,542,676.50 is: 60,814,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,708.50 : 181,982,562.75 = 40,542,676.50 : x
  2. Step 2: Convert to fraction form
    121,321,708.50/181,982,562.75 = 40,542,676.50/x
  3. Step 3: Cross multiply
    121,321,708.50x = 181,982,562.75 × 40,542,676.50
  4. Step 4: Simplify right side
    121,321,708.50x = 7,378,060,170,214,200
  5. Step 5: Solve for x
    x = 7,378,060,170,214,200/121,321,708.50
  6. Step 6: Final answer
    x = 60,814,014.75

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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.