Home / 721,052,105.07-1,081,545,656.05-300,700,382.43

Finding the Fourth Proportional to 721,052,105.07, 1,081,545,656.05 and 300,700,382.43

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Solution

The fourth proportional to 721,052,105.07, 1,081,545,656.05 and 300,700,382.43 is: 451,037,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,052,105.07 : 1,081,545,656.05 = 300,700,382.43 : x
  2. Step 2: Convert to fraction form
    721,052,105.07/1,081,545,656.05 = 300,700,382.43/x
  3. Step 3: Cross multiply
    721,052,105.07x = 1,081,545,656.05 × 300,700,382.43
  4. Step 4: Simplify right side
    721,052,105.07x = 325,221,192,388,236,800
  5. Step 5: Solve for x
    x = 325,221,192,388,236,800/721,052,105.07
  6. Step 6: Final answer
    x = 451,037,019.52

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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.