Home / 31,142,823.75-68,150,643.19

Finding the Third Proportional to 31,142,823.75 and 68,150,643.19

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Solution

The third proportional to 31,142,823.75 and 68,150,643.19 is: 149,135,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,142,823.75 : 68,150,643.19 = 68,150,643.19 : x
  2. Step 2: Convert to fraction form
    31,142,823.75/68,150,643.19 = 68,150,643.19/x
  3. Step 3: Cross multiply
    31,142,823.75x = 68,150,643.19 × 68,150,643.19
  4. Step 4: Simplify right side
    31,142,823.75x = 4,644,510,166,869,940
  5. Step 5: Solve for x
    x = 4,644,510,166,869,940/31,142,823.75
  6. Step 6: Final answer
    x = 149,135,807.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.