Home / 81,193,402.77-121,783,986.02-25,859,005.87

Finding the Fourth Proportional to 81,193,402.77, 121,783,986.02 and 25,859,005.87

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Solution

The fourth proportional to 81,193,402.77, 121,783,986.02 and 25,859,005.87 is: 38,786,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193,402.77 : 121,783,986.02 = 25,859,005.87 : x
  2. Step 2: Convert to fraction form
    81,193,402.77/121,783,986.02 = 25,859,005.87/x
  3. Step 3: Cross multiply
    81,193,402.77x = 121,783,986.02 × 25,859,005.87
  4. Step 4: Simplify right side
    81,193,402.77x = 3,149,212,809,206,124.50
  5. Step 5: Solve for x
    x = 3,149,212,809,206,124.50/81,193,402.77
  6. Step 6: Final answer
    x = 38,786,560.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.