Home / 55,161,741.72-82,713,886.34-20,589,716.81

Finding the Fourth Proportional to 55,161,741.72, 82,713,886.34 and 20,589,716.81

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Solution

The fourth proportional to 55,161,741.72, 82,713,886.34 and 20,589,716.81 is: 30,873,852.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161,741.72 : 82,713,886.34 = 20,589,716.81 : x
  2. Step 2: Convert to fraction form
    55,161,741.72/82,713,886.34 = 20,589,716.81/x
  3. Step 3: Cross multiply
    55,161,741.72x = 82,713,886.34 × 20,589,716.81
  4. Step 4: Simplify right side
    55,161,741.72x = 1,703,055,495,478,609.25
  5. Step 5: Solve for x
    x = 1,703,055,495,478,609.25/55,161,741.72
  6. Step 6: Final answer
    x = 30,873,852.83

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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.