Home / 79,274,239.31-121,280,734.27

Finding the Third Proportional to 79,274,239.31 and 121,280,734.27

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Solution

The third proportional to 79,274,239.31 and 121,280,734.27 is: 185,545,981.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274,239.31 : 121,280,734.27 = 121,280,734.27 : x
  2. Step 2: Convert to fraction form
    79,274,239.31/121,280,734.27 = 121,280,734.27/x
  3. Step 3: Cross multiply
    79,274,239.31x = 121,280,734.27 × 121,280,734.27
  4. Step 4: Simplify right side
    79,274,239.31x = 14,709,016,504,007,932
  5. Step 5: Solve for x
    x = 14,709,016,504,007,932/79,274,239.31
  6. Step 6: Final answer
    x = 185,545,981.03

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.