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Finding the Third Proportional to 39,358,076 and 81,231,263

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Solution

The third proportional to 39,358,076 and 81,231,263 is: 167,653,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358,076 : 81,231,263 = 81,231,263 : x
  2. Step 2: Convert to fraction form
    39,358,076/81,231,263 = 81,231,263/x
  3. Step 3: Cross multiply
    39,358,076x = 81,231,263 × 81,231,263
  4. Step 4: Simplify right side
    39,358,076x = 6,598,518,088,575,169
  5. Step 5: Solve for x
    x = 6,598,518,088,575,169/39,358,076
  6. Step 6: Final answer
    x = 167,653,471.90

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.