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Finding the Third Proportional to 20,538,850 and 28,713,128

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Solution

The third proportional to 20,538,850 and 28,713,128 is: 40,140,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538,850 : 28,713,128 = 28,713,128 : x
  2. Step 2: Convert to fraction form
    20,538,850/28,713,128 = 28,713,128/x
  3. Step 3: Cross multiply
    20,538,850x = 28,713,128 × 28,713,128
  4. Step 4: Simplify right side
    20,538,850x = 824,443,719,544,384
  5. Step 5: Solve for x
    x = 824,443,719,544,384/20,538,850
  6. Step 6: Final answer
    x = 40,140,695.29

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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.