Home / 6,640,283.80-9,969,756.90-4,120,859.80

Finding the Fourth Proportional to 6,640,283.80, 9,969,756.90 and 4,120,859.80

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Solution

The fourth proportional to 6,640,283.80, 9,969,756.90 and 4,120,859.80 is: 6,187,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,283.80 : 9,969,756.90 = 4,120,859.80 : x
  2. Step 2: Convert to fraction form
    6,640,283.80/9,969,756.90 = 4,120,859.80/x
  3. Step 3: Cross multiply
    6,640,283.80x = 9,969,756.90 × 4,120,859.80
  4. Step 4: Simplify right side
    6,640,283.80x = 41,083,970,424,982.62
  5. Step 5: Solve for x
    x = 41,083,970,424,982.62/6,640,283.80
  6. Step 6: Final answer
    x = 6,187,080.50

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1.5x scale

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.