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Finding the Third Proportional to 55,386,781 and 120,526,489

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Solution

The third proportional to 55,386,781 and 120,526,489 is: 262,276,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386,781 : 120,526,489 = 120,526,489 : x
  2. Step 2: Convert to fraction form
    55,386,781/120,526,489 = 120,526,489/x
  3. Step 3: Cross multiply
    55,386,781x = 120,526,489 × 120,526,489
  4. Step 4: Simplify right side
    55,386,781x = 14,526,634,550,667,120
  5. Step 5: Solve for x
    x = 14,526,634,550,667,120/55,386,781
  6. Step 6: Final answer
    x = 262,276,201.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.