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Finding the Third Proportional to 20,171,040 and 30,185,280

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Solution

The third proportional to 20,171,040 and 30,185,280 is: 45,171,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171,040 : 30,185,280 = 30,185,280 : x
  2. Step 2: Convert to fraction form
    20,171,040/30,185,280 = 30,185,280/x
  3. Step 3: Cross multiply
    20,171,040x = 30,185,280 × 30,185,280
  4. Step 4: Simplify right side
    20,171,040x = 911,151,128,678,400
  5. Step 5: Solve for x
    x = 911,151,128,678,400/20,171,040
  6. Step 6: Final answer
    x = 45,171,251.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.