Home / 31,712,883.54-43,769,914.38-20,680,479.66

Finding the Fourth Proportional to 31,712,883.54, 43,769,914.38 and 20,680,479.66

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Solution

The fourth proportional to 31,712,883.54, 43,769,914.38 and 20,680,479.66 is: 28,543,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712,883.54 : 43,769,914.38 = 20,680,479.66 : x
  2. Step 2: Convert to fraction form
    31,712,883.54/43,769,914.38 = 20,680,479.66/x
  3. Step 3: Cross multiply
    31,712,883.54x = 43,769,914.38 × 20,680,479.66
  4. Step 4: Simplify right side
    31,712,883.54x = 905,182,824,055,531.62
  5. Step 5: Solve for x
    x = 905,182,824,055,531.62/31,712,883.54
  6. Step 6: Final answer
    x = 28,543,062.72

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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.