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Finding the Third Proportional to 5,430,472 and 10,723,880

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Solution

The third proportional to 5,430,472 and 10,723,880 is: 21,177,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,472 : 10,723,880 = 10,723,880 : x
  2. Step 2: Convert to fraction form
    5,430,472/10,723,880 = 10,723,880/x
  3. Step 3: Cross multiply
    5,430,472x = 10,723,880 × 10,723,880
  4. Step 4: Simplify right side
    5,430,472x = 115,001,602,254,400
  5. Step 5: Solve for x
    x = 115,001,602,254,400/5,430,472
  6. Step 6: Final answer
    x = 21,177,091.47

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.