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Finding the Third Proportional to 4,979,020 and 10,921,880

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Solution

The third proportional to 4,979,020 and 10,921,880 is: 23,958,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979,020 : 10,921,880 = 10,921,880 : x
  2. Step 2: Convert to fraction form
    4,979,020/10,921,880 = 10,921,880/x
  3. Step 3: Cross multiply
    4,979,020x = 10,921,880 × 10,921,880
  4. Step 4: Simplify right side
    4,979,020x = 119,287,462,734,400
  5. Step 5: Solve for x
    x = 119,287,462,734,400/4,979,020
  6. Step 6: Final answer
    x = 23,958,020.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.