Home / 20,729,210.24-28,606,410.34-11,436,779.68

Finding the Fourth Proportional to 20,729,210.24, 28,606,410.34 and 11,436,779.68

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Solution

The fourth proportional to 20,729,210.24, 28,606,410.34 and 11,436,779.68 is: 15,782,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,210.24 : 28,606,410.34 = 11,436,779.68 : x
  2. Step 2: Convert to fraction form
    20,729,210.24/28,606,410.34 = 11,436,779.68/x
  3. Step 3: Cross multiply
    20,729,210.24x = 28,606,410.34 × 11,436,779.68
  4. Step 4: Simplify right side
    20,729,210.24x = 327,165,212,394,145.88
  5. Step 5: Solve for x
    x = 327,165,212,394,145.88/20,729,210.24
  6. Step 6: Final answer
    x = 15,782,811.24

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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.