Home / 20,578,515.84-28,399,485.60-11,410,961.76

Finding the Fourth Proportional to 20,578,515.84, 28,399,485.60 and 11,410,961.76

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Solution

The fourth proportional to 20,578,515.84, 28,399,485.60 and 11,410,961.76 is: 15,747,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,515.84 : 28,399,485.60 = 11,410,961.76 : x
  2. Step 2: Convert to fraction form
    20,578,515.84/28,399,485.60 = 11,410,961.76/x
  3. Step 3: Cross multiply
    20,578,515.84x = 28,399,485.60 × 11,410,961.76
  4. Step 4: Simplify right side
    20,578,515.84x = 324,065,444,185,270.69
  5. Step 5: Solve for x
    x = 324,065,444,185,270.69/20,578,515.84
  6. Step 6: Final answer
    x = 15,747,755.90

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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.