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Finding the Third Proportional to 9,142,534 and 19,660,988

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Solution

The third proportional to 9,142,534 and 19,660,988 is: 42,280,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142,534 : 19,660,988 = 19,660,988 : x
  2. Step 2: Convert to fraction form
    9,142,534/19,660,988 = 19,660,988/x
  3. Step 3: Cross multiply
    9,142,534x = 19,660,988 × 19,660,988
  4. Step 4: Simplify right side
    9,142,534x = 386,554,449,136,144
  5. Step 5: Solve for x
    x = 386,554,449,136,144/9,142,534
  6. Step 6: Final answer
    x = 42,280,887.24

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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.