Home / 20,835,297.21-28,752,911.54-11,543,064.69

Finding the Fourth Proportional to 20,835,297.21, 28,752,911.54 and 11,543,064.69

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Solution

The fourth proportional to 20,835,297.21, 28,752,911.54 and 11,543,064.69 is: 15,929,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835,297.21 : 28,752,911.54 = 11,543,064.69 : x
  2. Step 2: Convert to fraction form
    20,835,297.21/28,752,911.54 = 11,543,064.69/x
  3. Step 3: Cross multiply
    20,835,297.21x = 28,752,911.54 × 11,543,064.69
  4. Step 4: Simplify right side
    20,835,297.21x = 331,896,717,874,352.19
  5. Step 5: Solve for x
    x = 331,896,717,874,352.19/20,835,297.21
  6. Step 6: Final answer
    x = 15,929,540.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.