Home / 7,142,917.68-9,857,298.84-3,879,796.32

Finding the Fourth Proportional to 7,142,917.68, 9,857,298.84 and 3,879,796.32

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Solution

The fourth proportional to 7,142,917.68, 9,857,298.84 and 3,879,796.32 is: 5,354,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,917.68 : 9,857,298.84 = 3,879,796.32 : x
  2. Step 2: Convert to fraction form
    7,142,917.68/9,857,298.84 = 3,879,796.32/x
  3. Step 3: Cross multiply
    7,142,917.68x = 9,857,298.84 × 3,879,796.32
  4. Step 4: Simplify right side
    7,142,917.68x = 38,244,311,764,572.27
  5. Step 5: Solve for x
    x = 38,244,311,764,572.27/7,142,917.68
  6. Step 6: Final answer
    x = 5,354,158.27

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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.