Home / 12,530,278.52-18,795,433.88-3,432,456.12

Finding the Fourth Proportional to 12,530,278.52, 18,795,433.88 and 3,432,456.12

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Solution

The fourth proportional to 12,530,278.52, 18,795,433.88 and 3,432,456.12 is: 5,148,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530,278.52 : 18,795,433.88 = 3,432,456.12 : x
  2. Step 2: Convert to fraction form
    12,530,278.52/18,795,433.88 = 3,432,456.12/x
  3. Step 3: Cross multiply
    12,530,278.52x = 18,795,433.88 × 3,432,456.12
  4. Step 4: Simplify right side
    12,530,278.52x = 64,514,502,049,461.34
  5. Step 5: Solve for x
    x = 64,514,502,049,461.34/12,530,278.52
  6. Step 6: Final answer
    x = 5,148,688.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.