Home / 257,268,057.90-355,032,162.24-139,793,387.74

Finding the Fourth Proportional to 257,268,057.90, 355,032,162.24 and 139,793,387.74

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Solution

The fourth proportional to 257,268,057.90, 355,032,162.24 and 139,793,387.74 is: 192,916,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,268,057.90 : 355,032,162.24 = 139,793,387.74 : x
  2. Step 2: Convert to fraction form
    257,268,057.90/355,032,162.24 = 139,793,387.74/x
  3. Step 3: Cross multiply
    257,268,057.90x = 355,032,162.24 × 139,793,387.74
  4. Step 4: Simplify right side
    257,268,057.90x = 49,631,148,716,186,912
  5. Step 5: Solve for x
    x = 49,631,148,716,186,912/257,268,057.90
  6. Step 6: Final answer
    x = 192,916,093.51

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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.