Home / 248,331,409.83-342,707,917.82-138,323,171.43

Finding the Fourth Proportional to 248,331,409.83, 342,707,917.82 and 138,323,171.43

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Solution

The fourth proportional to 248,331,409.83, 342,707,917.82 and 138,323,171.43 is: 190,891,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,331,409.83 : 342,707,917.82 = 138,323,171.43 : x
  2. Step 2: Convert to fraction form
    248,331,409.83/342,707,917.82 = 138,323,171.43/x
  3. Step 3: Cross multiply
    248,331,409.83x = 342,707,917.82 × 138,323,171.43
  4. Step 4: Simplify right side
    248,331,409.83x = 47,404,446,066,342,600
  5. Step 5: Solve for x
    x = 47,404,446,066,342,600/248,331,409.83
  6. Step 6: Final answer
    x = 190,891,865.43

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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.