Home / 31,534,741.74-43,511,444.01-18,120,815.39

Finding the Fourth Proportional to 31,534,741.74, 43,511,444.01 and 18,120,815.39

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Solution

The fourth proportional to 31,534,741.74, 43,511,444.01 and 18,120,815.39 is: 25,002,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534,741.74 : 43,511,444.01 = 18,120,815.39 : x
  2. Step 2: Convert to fraction form
    31,534,741.74/43,511,444.01 = 18,120,815.39/x
  3. Step 3: Cross multiply
    31,534,741.74x = 43,511,444.01 × 18,120,815.39
  4. Step 4: Simplify right side
    31,534,741.74x = 788,462,844,366,309.75
  5. Step 5: Solve for x
    x = 788,462,844,366,309.75/31,534,741.74
  6. Step 6: Final answer
    x = 25,002,990.38

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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.