Home / 20,734,121.50-31,101,071.24-5,381,399.95

Finding the Fourth Proportional to 20,734,121.50, 31,101,071.24 and 5,381,399.95

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Solution

The fourth proportional to 20,734,121.50, 31,101,071.24 and 5,381,399.95 is: 8,072,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,121.50 : 31,101,071.24 = 5,381,399.95 : x
  2. Step 2: Convert to fraction form
    20,734,121.50/31,101,071.24 = 5,381,399.95/x
  3. Step 3: Cross multiply
    20,734,121.50x = 31,101,071.24 × 5,381,399.95
  4. Step 4: Simplify right side
    20,734,121.50x = 167,367,303,151,583.25
  5. Step 5: Solve for x
    x = 167,367,303,151,583.25/20,734,121.50
  6. Step 6: Final answer
    x = 8,072,071.11

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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.