Home / 7,128,405.80-10,692,608.70-2,080,226.60

Finding the Fourth Proportional to 7,128,405.80, 10,692,608.70 and 2,080,226.60

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Solution

The fourth proportional to 7,128,405.80, 10,692,608.70 and 2,080,226.60 is: 3,120,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,405.80 : 10,692,608.70 = 2,080,226.60 : x
  2. Step 2: Convert to fraction form
    7,128,405.80/10,692,608.70 = 2,080,226.60/x
  3. Step 3: Cross multiply
    7,128,405.80x = 10,692,608.70 × 2,080,226.60
  4. Step 4: Simplify right side
    7,128,405.80x = 22,243,049,041,131.42
  5. Step 5: Solve for x
    x = 22,243,049,041,131.42/7,128,405.80
  6. Step 6: Final answer
    x = 3,120,339.90

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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.