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Finding the Third Proportional to 1,988,971.88 and 4,294,876.50

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Solution

The third proportional to 1,988,971.88 and 4,294,876.50 is: 9,274,120.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,971.88 : 4,294,876.50 = 4,294,876.50 : x
  2. Step 2: Convert to fraction form
    1,988,971.88/4,294,876.50 = 4,294,876.50/x
  3. Step 3: Cross multiply
    1,988,971.88x = 4,294,876.50 × 4,294,876.50
  4. Step 4: Simplify right side
    1,988,971.88x = 18,445,964,150,252.25
  5. Step 5: Solve for x
    x = 18,445,964,150,252.25/1,988,971.88
  6. Step 6: Final answer
    x = 9,274,120.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.