Home / 385,713,163.52-532,288,072.32-209,504,600

Finding the Fourth Proportional to 385,713,163.52, 532,288,072.32 and 209,504,600

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Solution

The fourth proportional to 385,713,163.52, 532,288,072.32 and 209,504,600 is: 289,118,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,713,163.52 : 532,288,072.32 = 209,504,600 : x
  2. Step 2: Convert to fraction form
    385,713,163.52/532,288,072.32 = 209,504,600/x
  3. Step 3: Cross multiply
    385,713,163.52x = 532,288,072.32 × 209,504,600
  4. Step 4: Simplify right side
    385,713,163.52x = 111,516,799,676,172,672
  5. Step 5: Solve for x
    x = 111,516,799,676,172,672/385,713,163.52
  6. Step 6: Final answer
    x = 289,118,469.95

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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.