Home / 20,689,852.94-28,552,882.79-11,522,495.69

Finding the Fourth Proportional to 20,689,852.94, 28,552,882.79 and 11,522,495.69

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Solution

The fourth proportional to 20,689,852.94, 28,552,882.79 and 11,522,495.69 is: 15,901,537.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,852.94 : 28,552,882.79 = 11,522,495.69 : x
  2. Step 2: Convert to fraction form
    20,689,852.94/28,552,882.79 = 11,522,495.69/x
  3. Step 3: Cross multiply
    20,689,852.94x = 28,552,882.79 × 11,522,495.69
  4. Step 4: Simplify right side
    20,689,852.94x = 329,000,468,885,893.31
  5. Step 5: Solve for x
    x = 329,000,468,885,893.31/20,689,852.94
  6. Step 6: Final answer
    x = 15,901,537.33

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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.