Home / 496,800,766.47-685,568,977.14-285,142,436.28

Finding the Fourth Proportional to 496,800,766.47, 685,568,977.14 and 285,142,436.28

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Solution

The fourth proportional to 496,800,766.47, 685,568,977.14 and 285,142,436.28 is: 393,487,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,800,766.47 : 685,568,977.14 = 285,142,436.28 : x
  2. Step 2: Convert to fraction form
    496,800,766.47/685,568,977.14 = 285,142,436.28/x
  3. Step 3: Cross multiply
    496,800,766.47x = 685,568,977.14 × 285,142,436.28
  4. Step 4: Simplify right side
    496,800,766.47x = 195,484,808,379,687,200
  5. Step 5: Solve for x
    x = 195,484,808,379,687,200/496,800,766.47
  6. Step 6: Final answer
    x = 393,487,332.49

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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.