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Finding the Third Proportional to 79,989,720 and 171,316,668

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Solution

The third proportional to 79,989,720 and 171,316,668 is: 366,914,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,989,720 : 171,316,668 = 171,316,668 : x
  2. Step 2: Convert to fraction form
    79,989,720/171,316,668 = 171,316,668/x
  3. Step 3: Cross multiply
    79,989,720x = 171,316,668 × 171,316,668
  4. Step 4: Simplify right side
    79,989,720x = 29,349,400,734,622,224
  5. Step 5: Solve for x
    x = 29,349,400,734,622,224/79,989,720
  6. Step 6: Final answer
    x = 366,914,657.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.