Home / 21,014,112.60-31,521,168.90-7,382,650.95

Finding the Fourth Proportional to 21,014,112.60, 31,521,168.90 and 7,382,650.95

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Solution

The fourth proportional to 21,014,112.60, 31,521,168.90 and 7,382,650.95 is: 11,073,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,112.60 : 31,521,168.90 = 7,382,650.95 : x
  2. Step 2: Convert to fraction form
    21,014,112.60/31,521,168.90 = 7,382,650.95/x
  3. Step 3: Cross multiply
    21,014,112.60x = 31,521,168.90 × 7,382,650.95
  4. Step 4: Simplify right side
    21,014,112.60x = 232,709,787,524,695.44
  5. Step 5: Solve for x
    x = 232,709,787,524,695.44/21,014,112.60
  6. Step 6: Final answer
    x = 11,073,976.43

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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.