Home / 257,422,757.25-355,247,446.95-139,948,536.18

Finding the Fourth Proportional to 257,422,757.25, 355,247,446.95 and 139,948,536.18

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Solution

The fourth proportional to 257,422,757.25, 355,247,446.95 and 139,948,536.18 is: 193,131,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,422,757.25 : 355,247,446.95 = 139,948,536.18 : x
  2. Step 2: Convert to fraction form
    257,422,757.25/355,247,446.95 = 139,948,536.18/x
  3. Step 3: Cross multiply
    257,422,757.25x = 355,247,446.95 × 139,948,536.18
  4. Step 4: Simplify right side
    257,422,757.25x = 49,716,360,182,334,704
  5. Step 5: Solve for x
    x = 49,716,360,182,334,704/257,422,757.25
  6. Step 6: Final answer
    x = 193,131,177.34

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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.