Home / 496,479,190.14-685,141,249.93-287,756,402.60

Finding the Fourth Proportional to 496,479,190.14, 685,141,249.93 and 287,756,402.60

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Solution

The fourth proportional to 496,479,190.14, 685,141,249.93 and 287,756,402.60 is: 397,103,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,479,190.14 : 685,141,249.93 = 287,756,402.60 : x
  2. Step 2: Convert to fraction form
    496,479,190.14/685,141,249.93 = 287,756,402.60/x
  3. Step 3: Cross multiply
    496,479,190.14x = 685,141,249.93 × 287,756,402.60
  4. Step 4: Simplify right side
    496,479,190.14x = 197,153,781,353,717,792
  5. Step 5: Solve for x
    x = 197,153,781,353,717,792/496,479,190.14
  6. Step 6: Final answer
    x = 397,103,816.77

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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.