Home / 55,004,742.08-82,507,128.39-20,456,629.86

Finding the Fourth Proportional to 55,004,742.08, 82,507,128.39 and 20,456,629.86

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Solution

The fourth proportional to 55,004,742.08, 82,507,128.39 and 20,456,629.86 is: 30,684,950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004,742.08 : 82,507,128.39 = 20,456,629.86 : x
  2. Step 2: Convert to fraction form
    55,004,742.08/82,507,128.39 = 20,456,629.86/x
  3. Step 3: Cross multiply
    55,004,742.08x = 82,507,128.39 × 20,456,629.86
  4. Step 4: Simplify right side
    55,004,742.08x = 1,687,817,786,285,727.75
  5. Step 5: Solve for x
    x = 1,687,817,786,285,727.75/55,004,742.08
  6. Step 6: Final answer
    x = 30,684,950.47

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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.