Home / 423,481,520.70-635,447,979.45-164,705,183.10

Finding the Fourth Proportional to 423,481,520.70, 635,447,979.45 and 164,705,183.10

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Solution

The fourth proportional to 423,481,520.70, 635,447,979.45 and 164,705,183.10 is: 247,145,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,481,520.70 : 635,447,979.45 = 164,705,183.10 : x
  2. Step 2: Convert to fraction form
    423,481,520.70/635,447,979.45 = 164,705,183.10/x
  3. Step 3: Cross multiply
    423,481,520.70x = 635,447,979.45 × 164,705,183.10
  4. Step 4: Simplify right side
    423,481,520.70x = 104,661,575,805,837,296
  5. Step 5: Solve for x
    x = 104,661,575,805,837,296/423,481,520.70
  6. Step 6: Final answer
    x = 247,145,555.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.