Home / 78,631,133.50-123,080,273.75

Finding the Third Proportional to 78,631,133.50 and 123,080,273.75

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Solution

The third proportional to 78,631,133.50 and 123,080,273.75 is: 192,655,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,631,133.50 : 123,080,273.75 = 123,080,273.75 : x
  2. Step 2: Convert to fraction form
    78,631,133.50/123,080,273.75 = 123,080,273.75/x
  3. Step 3: Cross multiply
    78,631,133.50x = 123,080,273.75 × 123,080,273.75
  4. Step 4: Simplify right side
    78,631,133.50x = 15,148,753,786,374,940
  5. Step 5: Solve for x
    x = 15,148,753,786,374,940/78,631,133.50
  6. Step 6: Final answer
    x = 192,655,925.36

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.