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Finding the Third Proportional to 8,577,640 and 18,861,140

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Solution

The third proportional to 8,577,640 and 18,861,140 is: 41,473,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577,640 : 18,861,140 = 18,861,140 : x
  2. Step 2: Convert to fraction form
    8,577,640/18,861,140 = 18,861,140/x
  3. Step 3: Cross multiply
    8,577,640x = 18,861,140 × 18,861,140
  4. Step 4: Simplify right side
    8,577,640x = 355,742,602,099,600
  5. Step 5: Solve for x
    x = 355,742,602,099,600/8,577,640
  6. Step 6: Final answer
    x = 41,473,249.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.