Home / 20,841,940.64-28,752,446.66-12,579,361.69

Finding the Fourth Proportional to 20,841,940.64, 28,752,446.66 and 12,579,361.69

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Solution

The fourth proportional to 20,841,940.64, 28,752,446.66 and 12,579,361.69 is: 17,353,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841,940.64 : 28,752,446.66 = 12,579,361.69 : x
  2. Step 2: Convert to fraction form
    20,841,940.64/28,752,446.66 = 12,579,361.69/x
  3. Step 3: Cross multiply
    20,841,940.64x = 28,752,446.66 × 12,579,361.69
  4. Step 4: Simplify right side
    20,841,940.64x = 361,687,426,114,701.88
  5. Step 5: Solve for x
    x = 361,687,426,114,701.88/20,841,940.64
  6. Step 6: Final answer
    x = 17,353,826.71

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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.