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Finding the Third Proportional to 4,387,332 and 9,782,879

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Solution

The third proportional to 4,387,332 and 9,782,879 is: 21,813,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387,332 : 9,782,879 = 9,782,879 : x
  2. Step 2: Convert to fraction form
    4,387,332/9,782,879 = 9,782,879/x
  3. Step 3: Cross multiply
    4,387,332x = 9,782,879 × 9,782,879
  4. Step 4: Simplify right side
    4,387,332x = 95,704,721,528,641
  5. Step 5: Solve for x
    x = 95,704,721,528,641/4,387,332
  6. Step 6: Final answer
    x = 21,813,877.21

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.