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Finding the Third Proportional to 21,275,140 and 43,804,808

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Solution

The third proportional to 21,275,140 and 43,804,808 is: 90,192,647.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,140 : 43,804,808 = 43,804,808 : x
  2. Step 2: Convert to fraction form
    21,275,140/43,804,808 = 43,804,808/x
  3. Step 3: Cross multiply
    21,275,140x = 43,804,808 × 43,804,808
  4. Step 4: Simplify right side
    21,275,140x = 1,918,861,203,916,864
  5. Step 5: Solve for x
    x = 1,918,861,203,916,864/21,275,140
  6. Step 6: Final answer
    x = 90,192,647.57

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.