Home / 21,511,780.80-32,261,450.40-7,863,345.60

Finding the Fourth Proportional to 21,511,780.80, 32,261,450.40 and 7,863,345.60

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Solution

The fourth proportional to 21,511,780.80, 32,261,450.40 and 7,863,345.60 is: 11,792,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511,780.80 : 32,261,450.40 = 7,863,345.60 : x
  2. Step 2: Convert to fraction form
    21,511,780.80/32,261,450.40 = 7,863,345.60/x
  3. Step 3: Cross multiply
    21,511,780.80x = 32,261,450.40 × 7,863,345.60
  4. Step 4: Simplify right side
    21,511,780.80x = 253,682,934,052,458.22
  5. Step 5: Solve for x
    x = 253,682,934,052,458.22/21,511,780.80
  6. Step 6: Final answer
    x = 11,792,744.47

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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.