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Finding the Third Proportional to 8,722,363.50 and 12,831,642

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Solution

The third proportional to 8,722,363.50 and 12,831,642 is: 18,876,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722,363.50 : 12,831,642 = 12,831,642 : x
  2. Step 2: Convert to fraction form
    8,722,363.50/12,831,642 = 12,831,642/x
  3. Step 3: Cross multiply
    8,722,363.50x = 12,831,642 × 12,831,642
  4. Step 4: Simplify right side
    8,722,363.50x = 164,651,036,416,164
  5. Step 5: Solve for x
    x = 164,651,036,416,164/8,722,363.50
  6. Step 6: Final answer
    x = 18,876,883.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.