Home / 288,584,782.41-398,236,330.52-156,422,941.38

Finding the Fourth Proportional to 288,584,782.41, 398,236,330.52 and 156,422,941.38

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Solution

The fourth proportional to 288,584,782.41, 398,236,330.52 and 156,422,941.38 is: 215,857,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,782.41 : 398,236,330.52 = 156,422,941.38 : x
  2. Step 2: Convert to fraction form
    288,584,782.41/398,236,330.52 = 156,422,941.38/x
  3. Step 3: Cross multiply
    288,584,782.41x = 398,236,330.52 × 156,422,941.38
  4. Step 4: Simplify right side
    288,584,782.41x = 62,293,298,182,520,616
  5. Step 5: Solve for x
    x = 62,293,298,182,520,616/288,584,782.41
  6. Step 6: Final answer
    x = 215,857,876.02

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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.