Home / 20,787,664.80-31,137,260.40-16,806,352.80

Finding the Fourth Proportional to 20,787,664.80, 31,137,260.40 and 16,806,352.80

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Solution

The fourth proportional to 20,787,664.80, 31,137,260.40 and 16,806,352.80 is: 25,173,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787,664.80 : 31,137,260.40 = 16,806,352.80 : x
  2. Step 2: Convert to fraction form
    20,787,664.80/31,137,260.40 = 16,806,352.80/x
  3. Step 3: Cross multiply
    20,787,664.80x = 31,137,260.40 × 16,806,352.80
  4. Step 4: Simplify right side
    20,787,664.80x = 523,303,783,507,869.12
  5. Step 5: Solve for x
    x = 523,303,783,507,869.12/20,787,664.80
  6. Step 6: Final answer
    x = 25,173,764.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.