Home / 20,631,788.64-28,472,509.87-11,339,191.62

Finding the Fourth Proportional to 20,631,788.64, 28,472,509.87 and 11,339,191.62

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Solution

The fourth proportional to 20,631,788.64, 28,472,509.87 and 11,339,191.62 is: 15,648,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,788.64 : 28,472,509.87 = 11,339,191.62 : x
  2. Step 2: Convert to fraction form
    20,631,788.64/28,472,509.87 = 11,339,191.62/x
  3. Step 3: Cross multiply
    20,631,788.64x = 28,472,509.87 × 11,339,191.62
  4. Step 4: Simplify right side
    20,631,788.64x = 322,855,245,289,923.31
  5. Step 5: Solve for x
    x = 322,855,245,289,923.31/20,631,788.64
  6. Step 6: Final answer
    x = 15,648,437.03

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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.