Home / 21,068,108.80-31,583,241.60-8,297,324.80

Finding the Fourth Proportional to 21,068,108.80, 31,583,241.60 and 8,297,324.80

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Solution

The fourth proportional to 21,068,108.80, 31,583,241.60 and 8,297,324.80 is: 12,438,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068,108.80 : 31,583,241.60 = 8,297,324.80 : x
  2. Step 2: Convert to fraction form
    21,068,108.80/31,583,241.60 = 8,297,324.80/x
  3. Step 3: Cross multiply
    21,068,108.80x = 31,583,241.60 × 8,297,324.80
  4. Step 4: Simplify right side
    21,068,108.80x = 262,056,413,792,071.69
  5. Step 5: Solve for x
    x = 262,056,413,792,071.69/21,068,108.80
  6. Step 6: Final answer
    x = 12,438,535.24

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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.