Home / 28,347,816,400.70-39,120,002,326.24-15,311,998,995.95

Finding the Fourth Proportional to 28,347,816,400.70, 39,120,002,326.24 and 15,311,998,995.95

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Solution

The fourth proportional to 28,347,816,400.70, 39,120,002,326.24 and 15,311,998,995.95 is: 21,130,567,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,816,400.70 : 39,120,002,326.24 = 15,311,998,995.95 : x
  2. Step 2: Convert to fraction form
    28,347,816,400.70/39,120,002,326.24 = 15,311,998,995.95/x
  3. Step 3: Cross multiply
    28,347,816,400.70x = 39,120,002,326.24 × 15,311,998,995.95
  4. Step 4: Simplify right side
    28,347,816,400.70x = 599,005,436,340,948,566,016
  5. Step 5: Solve for x
    x = 599,005,436,340,948,566,016/28,347,816,400.70
  6. Step 6: Final answer
    x = 21,130,567,091.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.