Home / 312,468,674.19-468,794,020.46-139,905,131.37

Finding the Fourth Proportional to 312,468,674.19, 468,794,020.46 and 139,905,131.37

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Solution

The fourth proportional to 312,468,674.19, 468,794,020.46 and 139,905,131.37 is: 209,898,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,468,674.19 : 468,794,020.46 = 139,905,131.37 : x
  2. Step 2: Convert to fraction form
    312,468,674.19/468,794,020.46 = 139,905,131.37/x
  3. Step 3: Cross multiply
    312,468,674.19x = 468,794,020.46 × 139,905,131.37
  4. Step 4: Simplify right side
    312,468,674.19x = 65,586,689,015,469,264
  5. Step 5: Solve for x
    x = 65,586,689,015,469,264/312,468,674.19
  6. Step 6: Final answer
    x = 209,898,445.62

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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.