Home / 31,251,322.98-43,141,778.91-20,814,707.70

Finding the Fourth Proportional to 31,251,322.98, 43,141,778.91 and 20,814,707.70

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Solution

The fourth proportional to 31,251,322.98, 43,141,778.91 and 20,814,707.70 is: 28,734,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251,322.98 : 43,141,778.91 = 20,814,707.70 : x
  2. Step 2: Convert to fraction form
    31,251,322.98/43,141,778.91 = 20,814,707.70/x
  3. Step 3: Cross multiply
    31,251,322.98x = 43,141,778.91 × 20,814,707.70
  4. Step 4: Simplify right side
    31,251,322.98x = 897,983,517,669,674.50
  5. Step 5: Solve for x
    x = 897,983,517,669,674.50/31,251,322.98
  6. Step 6: Final answer
    x = 28,734,256.09

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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.