Home / 290,995,929.29-401,514,435.83-167,212,691.57

Finding the Fourth Proportional to 290,995,929.29, 401,514,435.83 and 167,212,691.57

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Solution

The fourth proportional to 290,995,929.29, 401,514,435.83 and 167,212,691.57 is: 230,719,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,995,929.29 : 401,514,435.83 = 167,212,691.57 : x
  2. Step 2: Convert to fraction form
    290,995,929.29/401,514,435.83 = 167,212,691.57/x
  3. Step 3: Cross multiply
    290,995,929.29x = 401,514,435.83 × 167,212,691.57
  4. Step 4: Simplify right side
    290,995,929.29x = 67,138,309,516,500,712
  5. Step 5: Solve for x
    x = 67,138,309,516,500,712/290,995,929.29
  6. Step 6: Final answer
    x = 230,719,067.73

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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.