Home / 257,268,063.90-355,032,170.52-139,793,393.74

Finding the Fourth Proportional to 257,268,063.90, 355,032,170.52 and 139,793,393.74

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Solution

The fourth proportional to 257,268,063.90, 355,032,170.52 and 139,793,393.74 is: 192,916,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,268,063.90 : 355,032,170.52 = 139,793,393.74 : x
  2. Step 2: Convert to fraction form
    257,268,063.90/355,032,170.52 = 139,793,393.74/x
  3. Step 3: Cross multiply
    257,268,063.90x = 355,032,170.52 × 139,793,393.74
  4. Step 4: Simplify right side
    257,268,063.90x = 49,631,152,003,869,184
  5. Step 5: Solve for x
    x = 49,631,152,003,869,184/257,268,063.90
  6. Step 6: Final answer
    x = 192,916,101.79

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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.