Home / 20,818,603.44-31,234,880.32-7,181,163.12

Finding the Fourth Proportional to 20,818,603.44, 31,234,880.32 and 7,181,163.12

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Solution

The fourth proportional to 20,818,603.44, 31,234,880.32 and 7,181,163.12 is: 10,774,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818,603.44 : 31,234,880.32 = 7,181,163.12 : x
  2. Step 2: Convert to fraction form
    20,818,603.44/31,234,880.32 = 7,181,163.12/x
  3. Step 3: Cross multiply
    20,818,603.44x = 31,234,880.32 × 7,181,163.12
  4. Step 4: Simplify right side
    20,818,603.44x = 224,302,770,611,597.81
  5. Step 5: Solve for x
    x = 224,302,770,611,597.81/20,818,603.44
  6. Step 6: Final answer
    x = 10,774,150.69

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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.