Home / 718,642,163.70-1,078,049,301.27-220,587,440.31

Finding the Fourth Proportional to 718,642,163.70, 1,078,049,301.27 and 220,587,440.31

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Solution

The fourth proportional to 718,642,163.70, 1,078,049,301.27 and 220,587,440.31 is: 330,907,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,642,163.70 : 1,078,049,301.27 = 220,587,440.31 : x
  2. Step 2: Convert to fraction form
    718,642,163.70/1,078,049,301.27 = 220,587,440.31/x
  3. Step 3: Cross multiply
    718,642,163.70x = 1,078,049,301.27 × 220,587,440.31
  4. Step 4: Simplify right side
    718,642,163.70x = 237,804,135,895,133,344
  5. Step 5: Solve for x
    x = 237,804,135,895,133,344/718,642,163.70
  6. Step 6: Final answer
    x = 330,907,575.30

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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.