Home / 91,151,976.85-125,789,718.34-49,336,035.20

Finding the Fourth Proportional to 91,151,976.85, 125,789,718.34 and 49,336,035.20

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Solution

The fourth proportional to 91,151,976.85, 125,789,718.34 and 49,336,035.20 is: 68,083,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,976.85 : 125,789,718.34 = 49,336,035.20 : x
  2. Step 2: Convert to fraction form
    91,151,976.85/125,789,718.34 = 49,336,035.20/x
  3. Step 3: Cross multiply
    91,151,976.85x = 125,789,718.34 × 49,336,035.20
  4. Step 4: Simplify right side
    91,151,976.85x = 6,205,965,972,154,438
  5. Step 5: Solve for x
    x = 6,205,965,972,154,438/91,151,976.85
  6. Step 6: Final answer
    x = 68,083,723.32

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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.