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Finding the Third Proportional to 100,947,330 and 219,609,360

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Solution

The third proportional to 100,947,330 and 219,609,360 is: 477,756,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,947,330 : 219,609,360 = 219,609,360 : x
  2. Step 2: Convert to fraction form
    100,947,330/219,609,360 = 219,609,360/x
  3. Step 3: Cross multiply
    100,947,330x = 219,609,360 × 219,609,360
  4. Step 4: Simplify right side
    100,947,330x = 48,228,270,999,609,600
  5. Step 5: Solve for x
    x = 48,228,270,999,609,600/100,947,330
  6. Step 6: Final answer
    x = 477,756,776.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.