Home / 7,965,041.28-11,947,536.96-1,981,409.28

Finding the Fourth Proportional to 7,965,041.28, 11,947,536.96 and 1,981,409.28

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Solution

The fourth proportional to 7,965,041.28, 11,947,536.96 and 1,981,409.28 is: 2,972,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965,041.28 : 11,947,536.96 = 1,981,409.28 : x
  2. Step 2: Convert to fraction form
    7,965,041.28/11,947,536.96 = 1,981,409.28/x
  3. Step 3: Cross multiply
    7,965,041.28x = 11,947,536.96 × 1,981,409.28
  4. Step 4: Simplify right side
    7,965,041.28x = 23,672,960,605,686.99
  5. Step 5: Solve for x
    x = 23,672,960,605,686.99/7,965,041.28
  6. Step 6: Final answer
    x = 2,972,107.71

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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.