Home / 496,494,518.24-685,162,432.46-287,771,729.46

Finding the Fourth Proportional to 496,494,518.24, 685,162,432.46 and 287,771,729.46

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Solution

The fourth proportional to 496,494,518.24, 685,162,432.46 and 287,771,729.46 is: 397,124,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,494,518.24 : 685,162,432.46 = 287,771,729.46 : x
  2. Step 2: Convert to fraction form
    496,494,518.24/685,162,432.46 = 287,771,729.46/x
  3. Step 3: Cross multiply
    496,494,518.24x = 685,162,432.46 × 287,771,729.46
  4. Step 4: Simplify right side
    496,494,518.24x = 197,170,378,150,034,624
  5. Step 5: Solve for x
    x = 197,170,378,150,034,624/496,494,518.24
  6. Step 6: Final answer
    x = 397,124,985.08

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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.