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Finding the Third Proportional to 9,389,382 and 19,787,511

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Solution

The third proportional to 9,389,382 and 19,787,511 is: 41,700,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389,382 : 19,787,511 = 19,787,511 : x
  2. Step 2: Convert to fraction form
    9,389,382/19,787,511 = 19,787,511/x
  3. Step 3: Cross multiply
    9,389,382x = 19,787,511 × 19,787,511
  4. Step 4: Simplify right side
    9,389,382x = 391,545,591,575,121
  5. Step 5: Solve for x
    x = 391,545,591,575,121/9,389,382
  6. Step 6: Final answer
    x = 41,700,890.60

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.