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Finding the Third Proportional to 90,056,630 and 212,378,555

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Solution

The third proportional to 90,056,630 and 212,378,555 is: 500,847,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,056,630 : 212,378,555 = 212,378,555 : x
  2. Step 2: Convert to fraction form
    90,056,630/212,378,555 = 212,378,555/x
  3. Step 3: Cross multiply
    90,056,630x = 212,378,555 × 212,378,555
  4. Step 4: Simplify right side
    90,056,630x = 45,104,650,623,888,024
  5. Step 5: Solve for x
    x = 45,104,650,623,888,024/90,056,630
  6. Step 6: Final answer
    x = 500,847,640.24

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.