Home / 7,990,449.78-11,025,997.83-5,898,405.21

Finding the Fourth Proportional to 7,990,449.78, 11,025,997.83 and 5,898,405.21

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Solution

The fourth proportional to 7,990,449.78, 11,025,997.83 and 5,898,405.21 is: 8,139,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,449.78 : 11,025,997.83 = 5,898,405.21 : x
  2. Step 2: Convert to fraction form
    7,990,449.78/11,025,997.83 = 5,898,405.21/x
  3. Step 3: Cross multiply
    7,990,449.78x = 11,025,997.83 × 5,898,405.21
  4. Step 4: Simplify right side
    7,990,449.78x = 65,035,803,045,920.70
  5. Step 5: Solve for x
    x = 65,035,803,045,920.70/7,990,449.78
  6. Step 6: Final answer
    x = 8,139,191.76

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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.