Home / 311,494,539.28-467,206,117.08-81,485,824.72

Finding the Fourth Proportional to 311,494,539.28, 467,206,117.08 and 81,485,824.72

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Solution

The fourth proportional to 311,494,539.28, 467,206,117.08 and 81,485,824.72 is: 122,219,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,494,539.28 : 467,206,117.08 = 81,485,824.72 : x
  2. Step 2: Convert to fraction form
    311,494,539.28/467,206,117.08 = 81,485,824.72/x
  3. Step 3: Cross multiply
    311,494,539.28x = 467,206,117.08 × 81,485,824.72
  4. Step 4: Simplify right side
    311,494,539.28x = 38,070,675,764,492,680
  5. Step 5: Solve for x
    x = 38,070,675,764,492,680/311,494,539.28
  6. Step 6: Final answer
    x = 122,219,400.23

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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.