Home / 662,252,820.62-913,621,727.25-394,178,337.90

Finding the Fourth Proportional to 662,252,820.62, 913,621,727.25 and 394,178,337.90

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Solution

The fourth proportional to 662,252,820.62, 913,621,727.25 and 394,178,337.90 is: 543,795,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,252,820.62 : 913,621,727.25 = 394,178,337.90 : x
  2. Step 2: Convert to fraction form
    662,252,820.62/913,621,727.25 = 394,178,337.90/x
  3. Step 3: Cross multiply
    662,252,820.62x = 913,621,727.25 × 394,178,337.90
  4. Step 4: Simplify right side
    662,252,820.62x = 360,129,893,916,732,096
  5. Step 5: Solve for x
    x = 360,129,893,916,732,096/662,252,820.62
  6. Step 6: Final answer
    x = 543,795,183.21

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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.