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Finding the Third Proportional to 66,118,272.47 and 154,396,988.79

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Solution

The third proportional to 66,118,272.47 and 154,396,988.79 is: 360,542,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,118,272.47 : 154,396,988.79 = 154,396,988.79 : x
  2. Step 2: Convert to fraction form
    66,118,272.47/154,396,988.79 = 154,396,988.79/x
  3. Step 3: Cross multiply
    66,118,272.47x = 154,396,988.79 × 154,396,988.79
  4. Step 4: Simplify right side
    66,118,272.47x = 23,838,430,147,129,120
  5. Step 5: Solve for x
    x = 23,838,430,147,129,120/66,118,272.47
  6. Step 6: Final answer
    x = 360,542,241.31

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.