Home / 72,707,425.02-100,332,742.86-39,665,708.37

Finding the Fourth Proportional to 72,707,425.02, 100,332,742.86 and 39,665,708.37

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Solution

The fourth proportional to 72,707,425.02, 100,332,742.86 and 39,665,708.37 is: 54,736,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,425.02 : 100,332,742.86 = 39,665,708.37 : x
  2. Step 2: Convert to fraction form
    72,707,425.02/100,332,742.86 = 39,665,708.37/x
  3. Step 3: Cross multiply
    72,707,425.02x = 100,332,742.86 × 39,665,708.37
  4. Step 4: Simplify right side
    72,707,425.02x = 3,979,769,318,246,959.50
  5. Step 5: Solve for x
    x = 3,979,769,318,246,959.50/72,707,425.02
  6. Step 6: Final answer
    x = 54,736,766.12

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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.