Home / 90,682,761-125,140,350.42-49,429,292.52

Finding the Fourth Proportional to 90,682,761, 125,140,350.42 and 49,429,292.52

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Solution

The fourth proportional to 90,682,761, 125,140,350.42 and 49,429,292.52 is: 68,211,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,682,761 : 125,140,350.42 = 49,429,292.52 : x
  2. Step 2: Convert to fraction form
    90,682,761/125,140,350.42 = 49,429,292.52/x
  3. Step 3: Cross multiply
    90,682,761x = 125,140,350.42 × 49,429,292.52
  4. Step 4: Simplify right side
    90,682,761x = 6,185,598,986,965,485
  5. Step 5: Solve for x
    x = 6,185,598,986,965,485/90,682,761
  6. Step 6: Final answer
    x = 68,211,409.96

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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.