Home / 51,143,291.20-76,649,618.40-20,816,891.20

Finding the Fourth Proportional to 51,143,291.20, 76,649,618.40 and 20,816,891.20

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Solution

The fourth proportional to 51,143,291.20, 76,649,618.40 and 20,816,891.20 is: 31,198,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143,291.20 : 76,649,618.40 = 20,816,891.20 : x
  2. Step 2: Convert to fraction form
    51,143,291.20/76,649,618.40 = 20,816,891.20/x
  3. Step 3: Cross multiply
    51,143,291.20x = 76,649,618.40 × 20,816,891.20
  4. Step 4: Simplify right side
    51,143,291.20x = 1,595,606,766,754,318.25
  5. Step 5: Solve for x
    x = 1,595,606,766,754,318.25/51,143,291.20
  6. Step 6: Final answer
    x = 31,198,750.20

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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.