Home / 67,143,817.54-100,715,720.78-18,621,670.56

Finding the Fourth Proportional to 67,143,817.54, 100,715,720.78 and 18,621,670.56

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Solution

The fourth proportional to 67,143,817.54, 100,715,720.78 and 18,621,670.56 is: 27,932,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,817.54 : 100,715,720.78 = 18,621,670.56 : x
  2. Step 2: Convert to fraction form
    67,143,817.54/100,715,720.78 = 18,621,670.56/x
  3. Step 3: Cross multiply
    67,143,817.54x = 100,715,720.78 × 18,621,670.56
  4. Step 4: Simplify right side
    67,143,817.54x = 1,875,494,972,578,106
  5. Step 5: Solve for x
    x = 1,875,494,972,578,106/67,143,817.54
  6. Step 6: Final answer
    x = 27,932,504.31

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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.