Home / 3,120,409.80-4,680,614.70-1,940,761.80

Finding the Fourth Proportional to 3,120,409.80, 4,680,614.70 and 1,940,761.80

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Solution

The fourth proportional to 3,120,409.80, 4,680,614.70 and 1,940,761.80 is: 2,911,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,409.80 : 4,680,614.70 = 1,940,761.80 : x
  2. Step 2: Convert to fraction form
    3,120,409.80/4,680,614.70 = 1,940,761.80/x
  3. Step 3: Cross multiply
    3,120,409.80x = 4,680,614.70 × 1,940,761.80
  4. Step 4: Simplify right side
    3,120,409.80x = 9,083,958,210,278.46
  5. Step 5: Solve for x
    x = 9,083,958,210,278.46/3,120,409.80
  6. Step 6: Final answer
    x = 2,911,142.70

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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.