Home / 31,100,867.26-42,940,447.59-20,114,208.70

Finding the Fourth Proportional to 31,100,867.26, 42,940,447.59 and 20,114,208.70

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Solution

The fourth proportional to 31,100,867.26, 42,940,447.59 and 20,114,208.70 is: 27,771,351.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100,867.26 : 42,940,447.59 = 20,114,208.70 : x
  2. Step 2: Convert to fraction form
    31,100,867.26/42,940,447.59 = 20,114,208.70/x
  3. Step 3: Cross multiply
    31,100,867.26x = 42,940,447.59 × 20,114,208.70
  4. Step 4: Simplify right side
    31,100,867.26x = 863,713,124,496,672.12
  5. Step 5: Solve for x
    x = 863,713,124,496,672.12/31,100,867.26
  6. Step 6: Final answer
    x = 27,771,351.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.