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Finding the Third Proportional to 72,771,108 and 159,215,448

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Solution

The third proportional to 72,771,108 and 159,215,448 is: 348,346,474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,108 : 159,215,448 = 159,215,448 : x
  2. Step 2: Convert to fraction form
    72,771,108/159,215,448 = 159,215,448/x
  3. Step 3: Cross multiply
    72,771,108x = 159,215,448 × 159,215,448
  4. Step 4: Simplify right side
    72,771,108x = 25,349,558,881,840,704
  5. Step 5: Solve for x
    x = 25,349,558,881,840,704/72,771,108
  6. Step 6: Final answer
    x = 348,346,474.01

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.