Home / 72,608,806.60-100,200,170.68-39,569,064.96

Finding the Fourth Proportional to 72,608,806.60, 100,200,170.68 and 39,569,064.96

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Solution

The fourth proportional to 72,608,806.60, 100,200,170.68 and 39,569,064.96 is: 54,605,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,608,806.60 : 100,200,170.68 = 39,569,064.96 : x
  2. Step 2: Convert to fraction form
    72,608,806.60/100,200,170.68 = 39,569,064.96/x
  3. Step 3: Cross multiply
    72,608,806.60x = 100,200,170.68 × 39,569,064.96
  4. Step 4: Simplify right side
    72,608,806.60x = 3,964,827,062,640,007.50
  5. Step 5: Solve for x
    x = 3,964,827,062,640,007.50/72,608,806.60
  6. Step 6: Final answer
    x = 54,605,319.22

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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.