Home / 388,524,059.52-536,193,776.64-221,267,400.96

Finding the Fourth Proportional to 388,524,059.52, 536,193,776.64 and 221,267,400.96

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Solution

The fourth proportional to 388,524,059.52, 536,193,776.64 and 221,267,400.96 is: 305,366,425.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,524,059.52 : 536,193,776.64 = 221,267,400.96 : x
  2. Step 2: Convert to fraction form
    388,524,059.52/536,193,776.64 = 221,267,400.96/x
  3. Step 3: Cross multiply
    388,524,059.52x = 536,193,776.64 × 221,267,400.96
  4. Step 4: Simplify right side
    388,524,059.52x = 118,642,203,368,059,568
  5. Step 5: Solve for x
    x = 118,642,203,368,059,568/388,524,059.52
  6. Step 6: Final answer
    x = 305,366,425.74

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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.