Home / 6,409,990.80-9,614,986.20-5,150,278.80

Finding the Fourth Proportional to 6,409,990.80, 9,614,986.20 and 5,150,278.80

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Solution

The fourth proportional to 6,409,990.80, 9,614,986.20 and 5,150,278.80 is: 7,725,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,990.80 : 9,614,986.20 = 5,150,278.80 : x
  2. Step 2: Convert to fraction form
    6,409,990.80/9,614,986.20 = 5,150,278.80/x
  3. Step 3: Cross multiply
    6,409,990.80x = 9,614,986.20 × 5,150,278.80
  4. Step 4: Simplify right side
    6,409,990.80x = 49,519,859,588,152.55
  5. Step 5: Solve for x
    x = 49,519,859,588,152.55/6,409,990.80
  6. Step 6: Final answer
    x = 7,725,418.20

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Double scale
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Similar ratio
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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.