Home / 20,215,533.60-30,309,097.92-7,081,738.32

Finding the Fourth Proportional to 20,215,533.60, 30,309,097.92 and 7,081,738.32

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Solution

The fourth proportional to 20,215,533.60, 30,309,097.92 and 7,081,738.32 is: 10,617,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,533.60 : 30,309,097.92 = 7,081,738.32 : x
  2. Step 2: Convert to fraction form
    20,215,533.60/30,309,097.92 = 7,081,738.32/x
  3. Step 3: Cross multiply
    20,215,533.60x = 30,309,097.92 × 7,081,738.32
  4. Step 4: Simplify right side
    20,215,533.60x = 214,641,100,184,696.31
  5. Step 5: Solve for x
    x = 214,641,100,184,696.31/20,215,533.60
  6. Step 6: Final answer
    x = 10,617,632.18

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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.