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Finding the Third Proportional to 84,074,390 and 126,712,941

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Solution

The third proportional to 84,074,390 and 126,712,941 is: 190,975,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,074,390 : 126,712,941 = 126,712,941 : x
  2. Step 2: Convert to fraction form
    84,074,390/126,712,941 = 126,712,941/x
  3. Step 3: Cross multiply
    84,074,390x = 126,712,941 × 126,712,941
  4. Step 4: Simplify right side
    84,074,390x = 16,056,169,416,869,480
  5. Step 5: Solve for x
    x = 16,056,169,416,869,480/84,074,390
  6. Step 6: Final answer
    x = 190,975,746.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.