Home / 4,979,909.80-7,469,864.70-4,680,728.20

Finding the Fourth Proportional to 4,979,909.80, 7,469,864.70 and 4,680,728.20

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Solution

The fourth proportional to 4,979,909.80, 7,469,864.70 and 4,680,728.20 is: 7,021,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979,909.80 : 7,469,864.70 = 4,680,728.20 : x
  2. Step 2: Convert to fraction form
    4,979,909.80/7,469,864.70 = 4,680,728.20/x
  3. Step 3: Cross multiply
    4,979,909.80x = 7,469,864.70 × 4,680,728.20
  4. Step 4: Simplify right side
    4,979,909.80x = 34,964,406,351,474.54
  5. Step 5: Solve for x
    x = 34,964,406,351,474.54/4,979,909.80
  6. Step 6: Final answer
    x = 7,021,092.30

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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.