Home / 39,904,988.22-55,068,859.39-21,570,273.72

Finding the Fourth Proportional to 39,904,988.22, 55,068,859.39 and 21,570,273.72

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Solution

The fourth proportional to 39,904,988.22, 55,068,859.39 and 21,570,273.72 is: 29,766,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,904,988.22 : 55,068,859.39 = 21,570,273.72 : x
  2. Step 2: Convert to fraction form
    39,904,988.22/55,068,859.39 = 21,570,273.72/x
  3. Step 3: Cross multiply
    39,904,988.22x = 55,068,859.39 × 21,570,273.72
  4. Step 4: Simplify right side
    39,904,988.22x = 1,187,850,370,382,640.75
  5. Step 5: Solve for x
    x = 1,187,850,370,382,640.75/39,904,988.22
  6. Step 6: Final answer
    x = 29,766,964.57

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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.