Home / 7,972,143.99-11,952,422.82-3,178,395.51

Finding the Fourth Proportional to 7,972,143.99, 11,952,422.82 and 3,178,395.51

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Solution

The fourth proportional to 7,972,143.99, 11,952,422.82 and 3,178,395.51 is: 4,765,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972,143.99 : 11,952,422.82 = 3,178,395.51 : x
  2. Step 2: Convert to fraction form
    7,972,143.99/11,952,422.82 = 3,178,395.51/x
  3. Step 3: Cross multiply
    7,972,143.99x = 11,952,422.82 × 3,178,395.51
  4. Step 4: Simplify right side
    7,972,143.99x = 37,989,527,024,709.54
  5. Step 5: Solve for x
    x = 37,989,527,024,709.54/7,972,143.99
  6. Step 6: Final answer
    x = 4,765,283.60

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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.