Home / 12,156,409.50-18,235,891.30-3,959,690.48

Finding the Fourth Proportional to 12,156,409.50, 18,235,891.30 and 3,959,690.48

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Solution

The fourth proportional to 12,156,409.50, 18,235,891.30 and 3,959,690.48 is: 5,939,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,409.50 : 18,235,891.30 = 3,959,690.48 : x
  2. Step 2: Convert to fraction form
    12,156,409.50/18,235,891.30 = 3,959,690.48/x
  3. Step 3: Cross multiply
    12,156,409.50x = 18,235,891.30 × 3,959,690.48
  4. Step 4: Simplify right side
    12,156,409.50x = 72,208,485,174,924.83
  5. Step 5: Solve for x
    x = 72,208,485,174,924.83/12,156,409.50
  6. Step 6: Final answer
    x = 5,939,951.69

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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.