Home / 290,995,956.20-401,514,472.90-167,212,718.48

Finding the Fourth Proportional to 290,995,956.20, 401,514,472.90 and 167,212,718.48

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Solution

The fourth proportional to 290,995,956.20, 401,514,472.90 and 167,212,718.48 is: 230,719,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,995,956.20 : 401,514,472.90 = 167,212,718.48 : x
  2. Step 2: Convert to fraction form
    290,995,956.20/401,514,472.90 = 167,212,718.48/x
  3. Step 3: Cross multiply
    290,995,956.20x = 401,514,472.90 × 167,212,718.48
  4. Step 4: Simplify right side
    290,995,956.20x = 67,138,326,522,673,280
  5. Step 5: Solve for x
    x = 67,138,326,522,673,280/290,995,956.20
  6. Step 6: Final answer
    x = 230,719,104.83

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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.