Home / 257,364,504.52-355,165,393.86-139,890,111.16

Finding the Fourth Proportional to 257,364,504.52, 355,165,393.86 and 139,890,111.16

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Solution

The fourth proportional to 257,364,504.52, 355,165,393.86 and 139,890,111.16 is: 193,049,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,364,504.52 : 355,165,393.86 = 139,890,111.16 : x
  2. Step 2: Convert to fraction form
    257,364,504.52/355,165,393.86 = 139,890,111.16/x
  3. Step 3: Cross multiply
    257,364,504.52x = 355,165,393.86 × 139,890,111.16
  4. Step 4: Simplify right side
    257,364,504.52x = 49,684,126,427,260,584
  5. Step 5: Solve for x
    x = 49,684,126,427,260,584/257,364,504.52
  6. Step 6: Final answer
    x = 193,049,645.75

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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.