Home / 20,746,880.19-31,142,234.03-11,656,745.91

Finding the Fourth Proportional to 20,746,880.19, 31,142,234.03 and 11,656,745.91

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Solution

The fourth proportional to 20,746,880.19, 31,142,234.03 and 11,656,745.91 is: 17,497,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746,880.19 : 31,142,234.03 = 11,656,745.91 : x
  2. Step 2: Convert to fraction form
    20,746,880.19/31,142,234.03 = 11,656,745.91/x
  3. Step 3: Cross multiply
    20,746,880.19x = 31,142,234.03 × 11,656,745.91
  4. Step 4: Simplify right side
    20,746,880.19x = 363,017,109,099,181.56
  5. Step 5: Solve for x
    x = 363,017,109,099,181.56/20,746,880.19
  6. Step 6: Final answer
    x = 17,497,431.22

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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.