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Finding the Third Proportional to 64,877,960 and 90,703,212

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Solution

The third proportional to 64,877,960 and 90,703,212 is: 126,808,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,877,960 : 90,703,212 = 90,703,212 : x
  2. Step 2: Convert to fraction form
    64,877,960/90,703,212 = 90,703,212/x
  3. Step 3: Cross multiply
    64,877,960x = 90,703,212 × 90,703,212
  4. Step 4: Simplify right side
    64,877,960x = 8,227,072,667,116,944
  5. Step 5: Solve for x
    x = 8,227,072,667,116,944/64,877,960
  6. Step 6: Final answer
    x = 126,808,436.44

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.