Home / 18,707,176.80-28,054,933.20-7,351,106.40

Finding the Fourth Proportional to 18,707,176.80, 28,054,933.20 and 7,351,106.40

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Solution

The fourth proportional to 18,707,176.80, 28,054,933.20 and 7,351,106.40 is: 11,024,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707,176.80 : 28,054,933.20 = 7,351,106.40 : x
  2. Step 2: Convert to fraction form
    18,707,176.80/28,054,933.20 = 7,351,106.40/x
  3. Step 3: Cross multiply
    18,707,176.80x = 28,054,933.20 × 7,351,106.40
  4. Step 4: Simplify right side
    18,707,176.80x = 206,234,798,998,092.50
  5. Step 5: Solve for x
    x = 206,234,798,998,092.50/18,707,176.80
  6. Step 6: Final answer
    x = 11,024,367.88

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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.