Home / 31,534,741.05-43,511,443.06-18,120,814.71

Finding the Fourth Proportional to 31,534,741.05, 43,511,443.06 and 18,120,814.71

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Solution

The fourth proportional to 31,534,741.05, 43,511,443.06 and 18,120,814.71 is: 25,002,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534,741.05 : 43,511,443.06 = 18,120,814.71 : x
  2. Step 2: Convert to fraction form
    31,534,741.05/43,511,443.06 = 18,120,814.71/x
  3. Step 3: Cross multiply
    31,534,741.05x = 43,511,443.06 × 18,120,814.71
  4. Step 4: Simplify right side
    31,534,741.05x = 788,462,797,454,975.50
  5. Step 5: Solve for x
    x = 788,462,797,454,975.50/31,534,741.05
  6. Step 6: Final answer
    x = 25,002,989.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.