Home / 72,741,796.70-100,396,683.51-43,375,019.90

Finding the Fourth Proportional to 72,741,796.70, 100,396,683.51 and 43,375,019.90

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Solution

The fourth proportional to 72,741,796.70, 100,396,683.51 and 43,375,019.90 is: 59,865,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,741,796.70 : 100,396,683.51 = 43,375,019.90 : x
  2. Step 2: Convert to fraction form
    72,741,796.70/100,396,683.51 = 43,375,019.90/x
  3. Step 3: Cross multiply
    72,741,796.70x = 100,396,683.51 × 43,375,019.90
  4. Step 4: Simplify right side
    72,741,796.70x = 4,354,708,145,140,252
  5. Step 5: Solve for x
    x = 4,354,708,145,140,252/72,741,796.70
  6. Step 6: Final answer
    x = 59,865,281.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.