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Finding the Third Proportional to 9,179,572 and 19,980,440

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Solution

The third proportional to 9,179,572 and 19,980,440 is: 43,489,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179,572 : 19,980,440 = 19,980,440 : x
  2. Step 2: Convert to fraction form
    9,179,572/19,980,440 = 19,980,440/x
  3. Step 3: Cross multiply
    9,179,572x = 19,980,440 × 19,980,440
  4. Step 4: Simplify right side
    9,179,572x = 399,217,982,593,600
  5. Step 5: Solve for x
    x = 399,217,982,593,600/9,179,572
  6. Step 6: Final answer
    x = 43,489,825.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.