Home / 2,820,643.20-3,887,094.96-2,768,816.16

Finding the Fourth Proportional to 2,820,643.20, 3,887,094.96 and 2,768,816.16

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Solution

The fourth proportional to 2,820,643.20, 3,887,094.96 and 2,768,816.16 is: 3,815,672.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,643.20 : 3,887,094.96 = 2,768,816.16 : x
  2. Step 2: Convert to fraction form
    2,820,643.20/3,887,094.96 = 2,768,816.16/x
  3. Step 3: Cross multiply
    2,820,643.20x = 3,887,094.96 × 2,768,816.16
  4. Step 4: Simplify right side
    2,820,643.20x = 10,762,651,340,702.55
  5. Step 5: Solve for x
    x = 10,762,651,340,702.55/2,820,643.20
  6. Step 6: Final answer
    x = 3,815,672.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.