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Finding the Third Proportional to 66,007,950 and 143,375,260

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Solution

The third proportional to 66,007,950 and 143,375,260 is: 311,424,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007,950 : 143,375,260 = 143,375,260 : x
  2. Step 2: Convert to fraction form
    66,007,950/143,375,260 = 143,375,260/x
  3. Step 3: Cross multiply
    66,007,950x = 143,375,260 × 143,375,260
  4. Step 4: Simplify right side
    66,007,950x = 20,556,465,180,067,600
  5. Step 5: Solve for x
    x = 20,556,465,180,067,600/66,007,950
  6. Step 6: Final answer
    x = 311,424,081.19

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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.