Home / 724,140,469.80-1,086,210,704.70-521,578,780.20

Finding the Fourth Proportional to 724,140,469.80, 1,086,210,704.70 and 521,578,780.20

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Solution

The fourth proportional to 724,140,469.80, 1,086,210,704.70 and 521,578,780.20 is: 782,368,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,140,469.80 : 1,086,210,704.70 = 521,578,780.20 : x
  2. Step 2: Convert to fraction form
    724,140,469.80/1,086,210,704.70 = 521,578,780.20/x
  3. Step 3: Cross multiply
    724,140,469.80x = 1,086,210,704.70 × 521,578,780.20
  4. Step 4: Simplify right side
    724,140,469.80x = 566,544,454,397,608,448
  5. Step 5: Solve for x
    x = 566,544,454,397,608,448/724,140,469.80
  6. Step 6: Final answer
    x = 782,368,170.30

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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.