Home / 31,534,741.67-43,511,443.93-18,120,815.33

Finding the Fourth Proportional to 31,534,741.67, 43,511,443.93 and 18,120,815.33

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Solution

The fourth proportional to 31,534,741.67, 43,511,443.93 and 18,120,815.33 is: 25,002,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534,741.67 : 43,511,443.93 = 18,120,815.33 : x
  2. Step 2: Convert to fraction form
    31,534,741.67/43,511,443.93 = 18,120,815.33/x
  3. Step 3: Cross multiply
    31,534,741.67x = 43,511,443.93 × 18,120,815.33
  4. Step 4: Simplify right side
    31,534,741.67x = 788,462,840,106,575.25
  5. Step 5: Solve for x
    x = 788,462,840,106,575.25/31,534,741.67
  6. Step 6: Final answer
    x = 25,002,990.30

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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.