Home / 355,775,176.11-490,942,936.53-216,530,548.23

Finding the Fourth Proportional to 355,775,176.11, 490,942,936.53 and 216,530,548.23

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Solution

The fourth proportional to 355,775,176.11, 490,942,936.53 and 216,530,548.23 is: 298,795,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,775,176.11 : 490,942,936.53 = 216,530,548.23 : x
  2. Step 2: Convert to fraction form
    355,775,176.11/490,942,936.53 = 216,530,548.23/x
  3. Step 3: Cross multiply
    355,775,176.11x = 490,942,936.53 × 216,530,548.23
  4. Step 4: Simplify right side
    355,775,176.11x = 106,304,143,196,177,376
  5. Step 5: Solve for x
    x = 106,304,143,196,177,376/355,775,176.11
  6. Step 6: Final answer
    x = 298,795,841.69

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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.