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Finding the Third Proportional to 13,921,990 and 29,900,488

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Solution

The third proportional to 13,921,990 and 29,900,488 is: 64,217,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,990 : 29,900,488 = 29,900,488 : x
  2. Step 2: Convert to fraction form
    13,921,990/29,900,488 = 29,900,488/x
  3. Step 3: Cross multiply
    13,921,990x = 29,900,488 × 29,900,488
  4. Step 4: Simplify right side
    13,921,990x = 894,039,182,638,144
  5. Step 5: Solve for x
    x = 894,039,182,638,144/13,921,990
  6. Step 6: Final answer
    x = 64,217,772.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.