Home / 670,086,286.80-1,005,129,430.20-325,712,518.80

Finding the Fourth Proportional to 670,086,286.80, 1,005,129,430.20 and 325,712,518.80

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Solution

The fourth proportional to 670,086,286.80, 1,005,129,430.20 and 325,712,518.80 is: 488,568,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,086,286.80 : 1,005,129,430.20 = 325,712,518.80 : x
  2. Step 2: Convert to fraction form
    670,086,286.80/1,005,129,430.20 = 325,712,518.80/x
  3. Step 3: Cross multiply
    670,086,286.80x = 1,005,129,430.20 × 325,712,518.80
  4. Step 4: Simplify right side
    670,086,286.80x = 327,383,238,430,450,816
  5. Step 5: Solve for x
    x = 327,383,238,430,450,816/670,086,286.80
  6. Step 6: Final answer
    x = 488,568,778.20

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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.