Home / 679,150,021.10-936,594,708.84-440,740,286.39

Finding the Fourth Proportional to 679,150,021.10, 936,594,708.84 and 440,740,286.39

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Solution

The fourth proportional to 679,150,021.10, 936,594,708.84 and 440,740,286.39 is: 607,811,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,150,021.10 : 936,594,708.84 = 440,740,286.39 : x
  2. Step 2: Convert to fraction form
    679,150,021.10/936,594,708.84 = 440,740,286.39/x
  3. Step 3: Cross multiply
    679,150,021.10x = 936,594,708.84 × 440,740,286.39
  4. Step 4: Simplify right side
    679,150,021.10x = 412,795,020,207,841,728
  5. Step 5: Solve for x
    x = 412,795,020,207,841,728/679,150,021.10
  6. Step 6: Final answer
    x = 607,811,245.51

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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.