Home / 12,889,557.39-17,782,554.85-7,379,987.70

Finding the Fourth Proportional to 12,889,557.39, 17,782,554.85 and 7,379,987.70

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Solution

The fourth proportional to 12,889,557.39, 17,782,554.85 and 7,379,987.70 is: 10,181,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,557.39 : 17,782,554.85 = 7,379,987.70 : x
  2. Step 2: Convert to fraction form
    12,889,557.39/17,782,554.85 = 7,379,987.70/x
  3. Step 3: Cross multiply
    12,889,557.39x = 17,782,554.85 × 7,379,987.70
  4. Step 4: Simplify right side
    12,889,557.39x = 131,235,036,067,575.36
  5. Step 5: Solve for x
    x = 131,235,036,067,575.36/12,889,557.39
  6. Step 6: Final answer
    x = 10,181,500.58

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