Home / 20,455,739.81-30,682,862.36-6,078,433.92

Finding the Fourth Proportional to 20,455,739.81, 30,682,862.36 and 6,078,433.92

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Solution

The fourth proportional to 20,455,739.81, 30,682,862.36 and 6,078,433.92 is: 9,117,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,739.81 : 30,682,862.36 = 6,078,433.92 : x
  2. Step 2: Convert to fraction form
    20,455,739.81/30,682,862.36 = 6,078,433.92/x
  3. Step 3: Cross multiply
    20,455,739.81x = 30,682,862.36 × 6,078,433.92
  4. Step 4: Simplify right side
    20,455,739.81x = 186,503,751,301,323.09
  5. Step 5: Solve for x
    x = 186,503,751,301,323.09/20,455,739.81
  6. Step 6: Final answer
    x = 9,117,428.80

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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.