Home / 500,608,900.44-690,790,506.39-288,983,909.24

Finding the Fourth Proportional to 500,608,900.44, 690,790,506.39 and 288,983,909.24

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Solution

The fourth proportional to 500,608,900.44, 690,790,506.39 and 288,983,909.24 is: 398,769,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,608,900.44 : 690,790,506.39 = 288,983,909.24 : x
  2. Step 2: Convert to fraction form
    500,608,900.44/690,790,506.39 = 288,983,909.24/x
  3. Step 3: Cross multiply
    500,608,900.44x = 690,790,506.39 × 288,983,909.24
  4. Step 4: Simplify right side
    500,608,900.44x = 199,627,340,999,007,456
  5. Step 5: Solve for x
    x = 199,627,340,999,007,456/500,608,900.44
  6. Step 6: Final answer
    x = 398,769,060.68

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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.