Home / 18,716,178.96-28,070,024.25-8,474,277.51

Finding the Fourth Proportional to 18,716,178.96, 28,070,024.25 and 8,474,277.51

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Solution

The fourth proportional to 18,716,178.96, 28,070,024.25 and 8,474,277.51 is: 12,709,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716,178.96 : 28,070,024.25 = 8,474,277.51 : x
  2. Step 2: Convert to fraction form
    18,716,178.96/28,070,024.25 = 8,474,277.51/x
  3. Step 3: Cross multiply
    18,716,178.96x = 28,070,024.25 × 8,474,277.51
  4. Step 4: Simplify right side
    18,716,178.96x = 237,873,175,206,929.62
  5. Step 5: Solve for x
    x = 237,873,175,206,929.62/18,716,178.96
  6. Step 6: Final answer
    x = 12,709,494.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.