Home / 21,099,949.34-31,649,578.15-6,722,821.82

Finding the Fourth Proportional to 21,099,949.34, 31,649,578.15 and 6,722,821.82

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Solution

The fourth proportional to 21,099,949.34, 31,649,578.15 and 6,722,821.82 is: 10,084,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099,949.34 : 31,649,578.15 = 6,722,821.82 : x
  2. Step 2: Convert to fraction form
    21,099,949.34/31,649,578.15 = 6,722,821.82/x
  3. Step 3: Cross multiply
    21,099,949.34x = 31,649,578.15 × 6,722,821.82
  4. Step 4: Simplify right side
    21,099,949.34x = 212,774,474,580,615.22
  5. Step 5: Solve for x
    x = 212,774,474,580,615.22/21,099,949.34
  6. Step 6: Final answer
    x = 10,084,122.53

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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.