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Finding the Third Proportional to 64,877,964 and 90,703,218

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Solution

The third proportional to 64,877,964 and 90,703,218 is: 126,808,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,877,964 : 90,703,218 = 90,703,218 : x
  2. Step 2: Convert to fraction form
    64,877,964/90,703,218 = 90,703,218/x
  3. Step 3: Cross multiply
    64,877,964x = 90,703,218 × 90,703,218
  4. Step 4: Simplify right side
    64,877,964x = 8,227,073,755,555,524
  5. Step 5: Solve for x
    x = 8,227,073,755,555,524/64,877,964
  6. Step 6: Final answer
    x = 126,808,445.40

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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.