Home / 20,215,534.60-30,309,099.42-7,081,739.32

Finding the Fourth Proportional to 20,215,534.60, 30,309,099.42 and 7,081,739.32

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Solution

The fourth proportional to 20,215,534.60, 30,309,099.42 and 7,081,739.32 is: 10,617,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,534.60 : 30,309,099.42 = 7,081,739.32 : x
  2. Step 2: Convert to fraction form
    20,215,534.60/30,309,099.42 = 7,081,739.32/x
  3. Step 3: Cross multiply
    20,215,534.60x = 30,309,099.42 × 7,081,739.32
  4. Step 4: Simplify right side
    20,215,534.60x = 214,641,141,116,403.22
  5. Step 5: Solve for x
    x = 214,641,141,116,403.22/20,215,534.60
  6. Step 6: Final answer
    x = 10,617,633.68

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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.