Home / 496,686,965.78-685,443,542.68-285,032,517.50

Finding the Fourth Proportional to 496,686,965.78, 685,443,542.68 and 285,032,517.50

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Solution

The fourth proportional to 496,686,965.78, 685,443,542.68 and 285,032,517.50 is: 393,353,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,686,965.78 : 685,443,542.68 = 285,032,517.50 : x
  2. Step 2: Convert to fraction form
    496,686,965.78/685,443,542.68 = 285,032,517.50/x
  3. Step 3: Cross multiply
    496,686,965.78x = 685,443,542.68 × 285,032,517.50
  4. Step 4: Simplify right side
    496,686,965.78x = 195,373,698,574,199,072
  5. Step 5: Solve for x
    x = 195,373,698,574,199,072/496,686,965.78
  6. Step 6: Final answer
    x = 393,353,786.26

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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.