Home / 20,913,564.03-28,860,142.45-11,620,893.70

Finding the Fourth Proportional to 20,913,564.03, 28,860,142.45 and 11,620,893.70

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Solution

The fourth proportional to 20,913,564.03, 28,860,142.45 and 11,620,893.70 is: 16,036,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913,564.03 : 28,860,142.45 = 11,620,893.70 : x
  2. Step 2: Convert to fraction form
    20,913,564.03/28,860,142.45 = 11,620,893.70/x
  3. Step 3: Cross multiply
    20,913,564.03x = 28,860,142.45 × 11,620,893.70
  4. Step 4: Simplify right side
    20,913,564.03x = 335,380,647,578,307.56
  5. Step 5: Solve for x
    x = 335,380,647,578,307.56/20,913,564.03
  6. Step 6: Final answer
    x = 16,036,513.29

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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.