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Finding the Third Proportional to 138,852,348 and 298,601,440.50

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Solution

The third proportional to 138,852,348 and 298,601,440.50 is: 642,141,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,852,348 : 298,601,440.50 = 298,601,440.50 : x
  2. Step 2: Convert to fraction form
    138,852,348/298,601,440.50 = 298,601,440.50/x
  3. Step 3: Cross multiply
    138,852,348x = 298,601,440.50 × 298,601,440.50
  4. Step 4: Simplify right side
    138,852,348x = 89,162,820,268,675,040
  5. Step 5: Solve for x
    x = 89,162,820,268,675,040/138,852,348
  6. Step 6: Final answer
    x = 642,141,249.70

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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.