Home / 20,859,811.08-28,787,869.62-11,692,456.20

Finding the Fourth Proportional to 20,859,811.08, 28,787,869.62 and 11,692,456.20

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Solution

The fourth proportional to 20,859,811.08, 28,787,869.62 and 11,692,456.20 is: 16,136,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,811.08 : 28,787,869.62 = 11,692,456.20 : x
  2. Step 2: Convert to fraction form
    20,859,811.08/28,787,869.62 = 11,692,456.20/x
  3. Step 3: Cross multiply
    20,859,811.08x = 28,787,869.62 × 11,692,456.20
  4. Step 4: Simplify right side
    20,859,811.08x = 336,600,904,623,160.62
  5. Step 5: Solve for x
    x = 336,600,904,623,160.62/20,859,811.08
  6. Step 6: Final answer
    x = 16,136,335.24

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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.