Home / 21,261,464.22-31,866,286.73-11,020,678.16

Finding the Fourth Proportional to 21,261,464.22, 31,866,286.73 and 11,020,678.16

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Solution

The fourth proportional to 21,261,464.22, 31,866,286.73 and 11,020,678.16 is: 16,517,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,464.22 : 31,866,286.73 = 11,020,678.16 : x
  2. Step 2: Convert to fraction form
    21,261,464.22/31,866,286.73 = 11,020,678.16/x
  3. Step 3: Cross multiply
    21,261,464.22x = 31,866,286.73 × 11,020,678.16
  4. Step 4: Simplify right side
    21,261,464.22x = 351,188,090,205,608.81
  5. Step 5: Solve for x
    x = 351,188,090,205,608.81/21,261,464.22
  6. Step 6: Final answer
    x = 16,517,587.24

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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.