Home / 7,020,008.20-10,530,012.30-3,986,201.80

Finding the Fourth Proportional to 7,020,008.20, 10,530,012.30 and 3,986,201.80

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Solution

The fourth proportional to 7,020,008.20, 10,530,012.30 and 3,986,201.80 is: 5,979,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,008.20 : 10,530,012.30 = 3,986,201.80 : x
  2. Step 2: Convert to fraction form
    7,020,008.20/10,530,012.30 = 3,986,201.80/x
  3. Step 3: Cross multiply
    7,020,008.20x = 10,530,012.30 × 3,986,201.80
  4. Step 4: Simplify right side
    7,020,008.20x = 41,974,753,984,282.14
  5. Step 5: Solve for x
    x = 41,974,753,984,282.14/7,020,008.20
  6. Step 6: Final answer
    x = 5,979,302.70

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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.