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Finding the Third Proportional to 8,360,632 and 12,921,409

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Solution

The third proportional to 8,360,632 and 12,921,409 is: 19,970,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360,632 : 12,921,409 = 12,921,409 : x
  2. Step 2: Convert to fraction form
    8,360,632/12,921,409 = 12,921,409/x
  3. Step 3: Cross multiply
    8,360,632x = 12,921,409 × 12,921,409
  4. Step 4: Simplify right side
    8,360,632x = 166,962,810,545,281
  5. Step 5: Solve for x
    x = 166,962,810,545,281/8,360,632
  6. Step 6: Final answer
    x = 19,970,118.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.