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Finding the Third Proportional to 128,083,390.50 and 275,619,417

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Solution

The third proportional to 128,083,390.50 and 275,619,417 is: 593,098,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,083,390.50 : 275,619,417 = 275,619,417 : x
  2. Step 2: Convert to fraction form
    128,083,390.50/275,619,417 = 275,619,417/x
  3. Step 3: Cross multiply
    128,083,390.50x = 275,619,417 × 275,619,417
  4. Step 4: Simplify right side
    128,083,390.50x = 75,966,063,027,419,888
  5. Step 5: Solve for x
    x = 75,966,063,027,419,888/128,083,390.50
  6. Step 6: Final answer
    x = 593,098,470.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.