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Finding the Third Proportional to 20,641,446 and 28,873,428

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Solution

The third proportional to 20,641,446 and 28,873,428 is: 40,388,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,446 : 28,873,428 = 28,873,428 : x
  2. Step 2: Convert to fraction form
    20,641,446/28,873,428 = 28,873,428/x
  3. Step 3: Cross multiply
    20,641,446x = 28,873,428 × 28,873,428
  4. Step 4: Simplify right side
    20,641,446x = 833,674,844,471,184
  5. Step 5: Solve for x
    x = 833,674,844,471,184/20,641,446
  6. Step 6: Final answer
    x = 40,388,393.55

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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.