Home / 72,859,958.19-109,781,513.87-60,189,947.91

Finding the Fourth Proportional to 72,859,958.19, 109,781,513.87 and 60,189,947.91

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Solution

The fourth proportional to 72,859,958.19, 109,781,513.87 and 60,189,947.91 is: 90,691,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,859,958.19 : 109,781,513.87 = 60,189,947.91 : x
  2. Step 2: Convert to fraction form
    72,859,958.19/109,781,513.87 = 60,189,947.91/x
  3. Step 3: Cross multiply
    72,859,958.19x = 109,781,513.87 × 60,189,947.91
  4. Step 4: Simplify right side
    72,859,958.19x = 6,607,743,601,015,292
  5. Step 5: Solve for x
    x = 6,607,743,601,015,292/72,859,958.19
  6. Step 6: Final answer
    x = 90,691,015.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.