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Finding the Third Proportional to 20,223,560 and 28,615,720

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Solution

The third proportional to 20,223,560 and 28,615,720 is: 40,490,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223,560 : 28,615,720 = 28,615,720 : x
  2. Step 2: Convert to fraction form
    20,223,560/28,615,720 = 28,615,720/x
  3. Step 3: Cross multiply
    20,223,560x = 28,615,720 × 28,615,720
  4. Step 4: Simplify right side
    20,223,560x = 818,859,431,118,400
  5. Step 5: Solve for x
    x = 818,859,431,118,400/20,223,560
  6. Step 6: Final answer
    x = 40,490,370.20

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.