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Finding the Third Proportional to 15,195,798 and 21,728,538

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Solution

The third proportional to 15,195,798 and 21,728,538 is: 31,069,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,798 : 21,728,538 = 21,728,538 : x
  2. Step 2: Convert to fraction form
    15,195,798/21,728,538 = 21,728,538/x
  3. Step 3: Cross multiply
    15,195,798x = 21,728,538 × 21,728,538
  4. Step 4: Simplify right side
    15,195,798x = 472,129,363,617,444
  5. Step 5: Solve for x
    x = 472,129,363,617,444/15,195,798
  6. Step 6: Final answer
    x = 31,069,731.49

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.