Home / 5,320,727.20-7,981,090.80-2,126,346.40

Finding the Fourth Proportional to 5,320,727.20, 7,981,090.80 and 2,126,346.40

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Solution

The fourth proportional to 5,320,727.20, 7,981,090.80 and 2,126,346.40 is: 3,189,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,727.20 : 7,981,090.80 = 2,126,346.40 : x
  2. Step 2: Convert to fraction form
    5,320,727.20/7,981,090.80 = 2,126,346.40/x
  3. Step 3: Cross multiply
    5,320,727.20x = 7,981,090.80 × 2,126,346.40
  4. Step 4: Simplify right side
    5,320,727.20x = 16,970,563,690,653.12
  5. Step 5: Solve for x
    x = 16,970,563,690,653.12/5,320,727.20
  6. Step 6: Final answer
    x = 3,189,519.60

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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.