Home / 386,188,841.52-532,959,748.92-239,558,364.72

Finding the Fourth Proportional to 386,188,841.52, 532,959,748.92 and 239,558,364.72

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Solution

The fourth proportional to 386,188,841.52, 532,959,748.92 and 239,558,364.72 is: 330,602,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,188,841.52 : 532,959,748.92 = 239,558,364.72 : x
  2. Step 2: Convert to fraction form
    386,188,841.52/532,959,748.92 = 239,558,364.72/x
  3. Step 3: Cross multiply
    386,188,841.52x = 532,959,748.92 × 239,558,364.72
  4. Step 4: Simplify right side
    386,188,841.52x = 127,674,965,912,856,992
  5. Step 5: Solve for x
    x = 127,674,965,912,856,992/386,188,841.52
  6. Step 6: Final answer
    x = 330,602,420.85

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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.