Home / 7,128,439.80-10,692,659.70-2,080,260.60

Finding the Fourth Proportional to 7,128,439.80, 10,692,659.70 and 2,080,260.60

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Solution

The fourth proportional to 7,128,439.80, 10,692,659.70 and 2,080,260.60 is: 3,120,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,439.80 : 10,692,659.70 = 2,080,260.60 : x
  2. Step 2: Convert to fraction form
    7,128,439.80/10,692,659.70 = 2,080,260.60/x
  3. Step 3: Cross multiply
    7,128,439.80x = 10,692,659.70 × 2,080,260.60
  4. Step 4: Simplify right side
    7,128,439.80x = 22,243,518,683,117.82
  5. Step 5: Solve for x
    x = 22,243,518,683,117.82/7,128,439.80
  6. Step 6: Final answer
    x = 3,120,390.90

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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.