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Finding the Third Proportional to 4,203,640 and 8,742,760

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Solution

The third proportional to 4,203,640 and 8,742,760 is: 18,183,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,203,640 : 8,742,760 = 8,742,760 : x
  2. Step 2: Convert to fraction form
    4,203,640/8,742,760 = 8,742,760/x
  3. Step 3: Cross multiply
    4,203,640x = 8,742,760 × 8,742,760
  4. Step 4: Simplify right side
    4,203,640x = 76,435,852,417,600
  5. Step 5: Solve for x
    x = 76,435,852,417,600/4,203,640
  6. Step 6: Final answer
    x = 18,183,253.66

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.