Home / 7,128,056.20-10,694,532.30-2,080,107.40

Finding the Fourth Proportional to 7,128,056.20, 10,694,532.30 and 2,080,107.40

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Solution

The fourth proportional to 7,128,056.20, 10,694,532.30 and 2,080,107.40 is: 3,120,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,056.20 : 10,694,532.30 = 2,080,107.40 : x
  2. Step 2: Convert to fraction form
    7,128,056.20/10,694,532.30 = 2,080,107.40/x
  3. Step 3: Cross multiply
    7,128,056.20x = 10,694,532.30 × 2,080,107.40
  4. Step 4: Simplify right side
    7,128,056.20x = 22,245,775,776,769.02
  5. Step 5: Solve for x
    x = 22,245,775,776,769.02/7,128,056.20
  6. Step 6: Final answer
    x = 3,120,875.47

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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.