Home / 398,700,163.73-550,206,327.56-220,084,154.01

Finding the Fourth Proportional to 398,700,163.73, 550,206,327.56 and 220,084,154.01

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Solution

The fourth proportional to 398,700,163.73, 550,206,327.56 and 220,084,154.01 is: 303,716,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,700,163.73 : 550,206,327.56 = 220,084,154.01 : x
  2. Step 2: Convert to fraction form
    398,700,163.73/550,206,327.56 = 220,084,154.01/x
  3. Step 3: Cross multiply
    398,700,163.73x = 550,206,327.56 × 220,084,154.01
  4. Step 4: Simplify right side
    398,700,163.73x = 121,091,694,130,891,104
  5. Step 5: Solve for x
    x = 121,091,694,130,891,104/398,700,163.73
  6. Step 6: Final answer
    x = 303,716,188.63

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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.