Home / 287,976,918.83-397,407,891.20-162,555,514.43

Finding the Fourth Proportional to 287,976,918.83, 397,407,891.20 and 162,555,514.43

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Solution

The fourth proportional to 287,976,918.83, 397,407,891.20 and 162,555,514.43 is: 224,326,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976,918.83 : 397,407,891.20 = 162,555,514.43 : x
  2. Step 2: Convert to fraction form
    287,976,918.83/397,407,891.20 = 162,555,514.43/x
  3. Step 3: Cross multiply
    287,976,918.83x = 397,407,891.20 × 162,555,514.43
  4. Step 4: Simplify right side
    287,976,918.83x = 64,600,844,190,976,824
  5. Step 5: Solve for x
    x = 64,600,844,190,976,824/287,976,918.83
  6. Step 6: Final answer
    x = 224,326,464.96

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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.