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Finding the Third Proportional to 31,385,870 and 66,505,300

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Solution

The third proportional to 31,385,870 and 66,505,300 is: 140,921,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385,870 : 66,505,300 = 66,505,300 : x
  2. Step 2: Convert to fraction form
    31,385,870/66,505,300 = 66,505,300/x
  3. Step 3: Cross multiply
    31,385,870x = 66,505,300 × 66,505,300
  4. Step 4: Simplify right side
    31,385,870x = 4,422,954,928,090,000
  5. Step 5: Solve for x
    x = 4,422,954,928,090,000/31,385,870
  6. Step 6: Final answer
    x = 140,921,852.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.