Home / 20,347,819.02-28,078,361.37-11,643,996.42

Finding the Fourth Proportional to 20,347,819.02, 28,078,361.37 and 11,643,996.42

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Solution

The fourth proportional to 20,347,819.02, 28,078,361.37 and 11,643,996.42 is: 16,067,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,819.02 : 28,078,361.37 = 11,643,996.42 : x
  2. Step 2: Convert to fraction form
    20,347,819.02/28,078,361.37 = 11,643,996.42/x
  3. Step 3: Cross multiply
    20,347,819.02x = 28,078,361.37 × 11,643,996.42
  4. Step 4: Simplify right side
    20,347,819.02x = 326,944,339,271,746.31
  5. Step 5: Solve for x
    x = 326,944,339,271,746.31/20,347,819.02
  6. Step 6: Final answer
    x = 16,067,782.94

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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.