Home / 257,637,906.72-355,541,857.38-140,164,077.69

Finding the Fourth Proportional to 257,637,906.72, 355,541,857.38 and 140,164,077.69

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Solution

The fourth proportional to 257,637,906.72, 355,541,857.38 and 140,164,077.69 is: 193,427,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,637,906.72 : 355,541,857.38 = 140,164,077.69 : x
  2. Step 2: Convert to fraction form
    257,637,906.72/355,541,857.38 = 140,164,077.69/x
  3. Step 3: Cross multiply
    257,637,906.72x = 355,541,857.38 × 140,164,077.69
  4. Step 4: Simplify right side
    257,637,906.72x = 49,834,196,519,857,216
  5. Step 5: Solve for x
    x = 49,834,196,519,857,216/257,637,906.72
  6. Step 6: Final answer
    x = 193,427,268.35

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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.