Home / 278,908,324,216.20-418,362,486,324.30-90,273,288,122.10

Finding the Fourth Proportional to 278,908,324,216.20, 418,362,486,324.30 and 90,273,288,122.10

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Solution

The fourth proportional to 278,908,324,216.20, 418,362,486,324.30 and 90,273,288,122.10 is: 135,409,932,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,908,324,216.20 : 418,362,486,324.30 = 90,273,288,122.10 : x
  2. Step 2: Convert to fraction form
    278,908,324,216.20/418,362,486,324.30 = 90,273,288,122.10/x
  3. Step 3: Cross multiply
    278,908,324,216.20x = 418,362,486,324.30 × 90,273,288,122.10
  4. Step 4: Simplify right side
    278,908,324,216.20x = 37,766,957,267,431,655,997,440
  5. Step 5: Solve for x
    x = 37,766,957,267,431,655,997,440/278,908,324,216.20
  6. Step 6: Final answer
    x = 135,409,932,183.15

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1.5x scale

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.