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Finding the Third Proportional to 68,542,956 and 148,371,480

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Solution

The third proportional to 68,542,956 and 148,371,480 is: 321,172,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,542,956 : 148,371,480 = 148,371,480 : x
  2. Step 2: Convert to fraction form
    68,542,956/148,371,480 = 148,371,480/x
  3. Step 3: Cross multiply
    68,542,956x = 148,371,480 × 148,371,480
  4. Step 4: Simplify right side
    68,542,956x = 22,014,096,077,390,400
  5. Step 5: Solve for x
    x = 22,014,096,077,390,400/68,542,956
  6. Step 6: Final answer
    x = 321,172,259.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.