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Finding the Third Proportional to 38,288,790 and 81,959,665.50

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Solution

The third proportional to 38,288,790 and 81,959,665.50 is: 175,440,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288,790 : 81,959,665.50 = 81,959,665.50 : x
  2. Step 2: Convert to fraction form
    38,288,790/81,959,665.50 = 81,959,665.50/x
  3. Step 3: Cross multiply
    38,288,790x = 81,959,665.50 × 81,959,665.50
  4. Step 4: Simplify right side
    38,288,790x = 6,717,386,768,871,890
  5. Step 5: Solve for x
    x = 6,717,386,768,871,890/38,288,790
  6. Step 6: Final answer
    x = 175,440,037.90

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.