Home / 290,995,934.36-401,514,442.80-167,212,696.64

Finding the Fourth Proportional to 290,995,934.36, 401,514,442.80 and 167,212,696.64

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Solution

The fourth proportional to 290,995,934.36, 401,514,442.80 and 167,212,696.64 is: 230,719,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,995,934.36 : 401,514,442.80 = 167,212,696.64 : x
  2. Step 2: Convert to fraction form
    290,995,934.36/401,514,442.80 = 167,212,696.64/x
  3. Step 3: Cross multiply
    290,995,934.36x = 401,514,442.80 × 167,212,696.64
  4. Step 4: Simplify right side
    290,995,934.36x = 67,138,312,718,487,456
  5. Step 5: Solve for x
    x = 67,138,312,718,487,456/290,995,934.36
  6. Step 6: Final answer
    x = 230,719,074.71

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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.