Home / 40,564,679.99-55,979,453.30-21,979,815.22

Finding the Fourth Proportional to 40,564,679.99, 55,979,453.30 and 21,979,815.22

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Solution

The fourth proportional to 40,564,679.99, 55,979,453.30 and 21,979,815.22 is: 30,332,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,679.99 : 55,979,453.30 = 21,979,815.22 : x
  2. Step 2: Convert to fraction form
    40,564,679.99/55,979,453.30 = 21,979,815.22/x
  3. Step 3: Cross multiply
    40,564,679.99x = 55,979,453.30 × 21,979,815.22
  4. Step 4: Simplify right side
    40,564,679.99x = 1,230,418,039,650,619
  5. Step 5: Solve for x
    x = 1,230,418,039,650,619/40,564,679.99
  6. Step 6: Final answer
    x = 30,332,250.62

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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.