Home / 20,672,387.68-28,527,895.38-11,507,195.56

Finding the Fourth Proportional to 20,672,387.68, 28,527,895.38 and 11,507,195.56

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Solution

The fourth proportional to 20,672,387.68, 28,527,895.38 and 11,507,195.56 is: 15,879,930.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,387.68 : 28,527,895.38 = 11,507,195.56 : x
  2. Step 2: Convert to fraction form
    20,672,387.68/28,527,895.38 = 11,507,195.56/x
  3. Step 3: Cross multiply
    20,672,387.68x = 28,527,895.38 × 11,507,195.56
  4. Step 4: Simplify right side
    20,672,387.68x = 328,276,071,052,880.50
  5. Step 5: Solve for x
    x = 328,276,071,052,880.50/20,672,387.68
  6. Step 6: Final answer
    x = 15,879,930.09

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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.