Home / 28,653,176.80-42,885,286.80-20,150,120.80

Finding the Fourth Proportional to 28,653,176.80, 42,885,286.80 and 20,150,120.80

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Solution

The fourth proportional to 28,653,176.80, 42,885,286.80 and 20,150,120.80 is: 30,158,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653,176.80 : 42,885,286.80 = 20,150,120.80 : x
  2. Step 2: Convert to fraction form
    28,653,176.80/42,885,286.80 = 20,150,120.80/x
  3. Step 3: Cross multiply
    28,653,176.80x = 42,885,286.80 × 20,150,120.80
  4. Step 4: Simplify right side
    28,653,176.80x = 864,143,709,562,645.38
  5. Step 5: Solve for x
    x = 864,143,709,562,645.38/28,653,176.80
  6. Step 6: Final answer
    x = 30,158,740.01

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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.