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Finding the Third Proportional to 21,298,494 and 30,457,098

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Solution

The third proportional to 21,298,494 and 30,457,098 is: 43,554,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298,494 : 30,457,098 = 30,457,098 : x
  2. Step 2: Convert to fraction form
    21,298,494/30,457,098 = 30,457,098/x
  3. Step 3: Cross multiply
    21,298,494x = 30,457,098 × 30,457,098
  4. Step 4: Simplify right side
    21,298,494x = 927,634,818,581,604
  5. Step 5: Solve for x
    x = 927,634,818,581,604/21,298,494
  6. Step 6: Final answer
    x = 43,554,009.90

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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.