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Finding the Third Proportional to 4,255,790 and 9,456,220

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Solution

The third proportional to 4,255,790 and 9,456,220 is: 21,011,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255,790 : 9,456,220 = 9,456,220 : x
  2. Step 2: Convert to fraction form
    4,255,790/9,456,220 = 9,456,220/x
  3. Step 3: Cross multiply
    4,255,790x = 9,456,220 × 9,456,220
  4. Step 4: Simplify right side
    4,255,790x = 89,420,096,688,400
  5. Step 5: Solve for x
    x = 89,420,096,688,400/4,255,790
  6. Step 6: Final answer
    x = 21,011,397.81

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.