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Finding the Third Proportional to 7,344,720 and 15,909,120

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Solution

The third proportional to 7,344,720 and 15,909,120 is: 34,460,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344,720 : 15,909,120 = 15,909,120 : x
  2. Step 2: Convert to fraction form
    7,344,720/15,909,120 = 15,909,120/x
  3. Step 3: Cross multiply
    7,344,720x = 15,909,120 × 15,909,120
  4. Step 4: Simplify right side
    7,344,720x = 253,100,099,174,400
  5. Step 5: Solve for x
    x = 253,100,099,174,400/7,344,720
  6. Step 6: Final answer
    x = 34,460,142.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.