Home / 287,976,918.70-397,407,891.03-162,555,514.30

Finding the Fourth Proportional to 287,976,918.70, 397,407,891.03 and 162,555,514.30

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Solution

The fourth proportional to 287,976,918.70, 397,407,891.03 and 162,555,514.30 is: 224,326,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976,918.70 : 397,407,891.03 = 162,555,514.30 : x
  2. Step 2: Convert to fraction form
    287,976,918.70/397,407,891.03 = 162,555,514.30/x
  3. Step 3: Cross multiply
    287,976,918.70x = 397,407,891.03 × 162,555,514.30
  4. Step 4: Simplify right side
    287,976,918.70x = 64,600,844,113,260,008
  5. Step 5: Solve for x
    x = 64,600,844,113,260,008/287,976,918.70
  6. Step 6: Final answer
    x = 224,326,464.79

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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.