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Finding the Third Proportional to 209,707,426 and 314,561,172

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Solution

The third proportional to 209,707,426 and 314,561,172 is: 471,841,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,707,426 : 314,561,172 = 314,561,172 : x
  2. Step 2: Convert to fraction form
    209,707,426/314,561,172 = 314,561,172/x
  3. Step 3: Cross multiply
    209,707,426x = 314,561,172 × 314,561,172
  4. Step 4: Simplify right side
    209,707,426x = 98,948,730,930,013,584
  5. Step 5: Solve for x
    x = 98,948,730,930,013,584/209,707,426
  6. Step 6: Final answer
    x = 471,841,807.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.