Home / 31,681,171.88-43,739,763.20-21,775,111.64

Finding the Fourth Proportional to 31,681,171.88, 43,739,763.20 and 21,775,111.64

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Solution

The fourth proportional to 31,681,171.88, 43,739,763.20 and 21,775,111.64 is: 30,063,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681,171.88 : 43,739,763.20 = 21,775,111.64 : x
  2. Step 2: Convert to fraction form
    31,681,171.88/43,739,763.20 = 21,775,111.64/x
  3. Step 3: Cross multiply
    31,681,171.88x = 43,739,763.20 × 21,775,111.64
  4. Step 4: Simplify right side
    31,681,171.88x = 952,438,226,787,163.75
  5. Step 5: Solve for x
    x = 952,438,226,787,163.75/31,681,171.88
  6. Step 6: Final answer
    x = 30,063,225.89

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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.