Home / 643,797,141.08-888,461,514.34-361,589,313.22

Finding the Fourth Proportional to 643,797,141.08, 888,461,514.34 and 361,589,313.22

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Solution

The fourth proportional to 643,797,141.08, 888,461,514.34 and 361,589,313.22 is: 499,005,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,797,141.08 : 888,461,514.34 = 361,589,313.22 : x
  2. Step 2: Convert to fraction form
    643,797,141.08/888,461,514.34 = 361,589,313.22/x
  3. Step 3: Cross multiply
    643,797,141.08x = 888,461,514.34 × 361,589,313.22
  4. Step 4: Simplify right side
    643,797,141.08x = 321,258,188,789,476,608
  5. Step 5: Solve for x
    x = 321,258,188,789,476,608/643,797,141.08
  6. Step 6: Final answer
    x = 499,005,305.08

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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.