Home / 900,383,378.72-1,350,643,183.05-278,661,492.95

Finding the Fourth Proportional to 900,383,378.72, 1,350,643,183.05 and 278,661,492.95

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Solution

The fourth proportional to 900,383,378.72, 1,350,643,183.05 and 278,661,492.95 is: 418,013,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,383,378.72 : 1,350,643,183.05 = 278,661,492.95 : x
  2. Step 2: Convert to fraction form
    900,383,378.72/1,350,643,183.05 = 278,661,492.95/x
  3. Step 3: Cross multiply
    900,383,378.72x = 1,350,643,183.05 × 278,661,492.95
  4. Step 4: Simplify right side
    900,383,378.72x = 376,372,245,824,170,432
  5. Step 5: Solve for x
    x = 376,372,245,824,170,432/900,383,378.72
  6. Step 6: Final answer
    x = 418,013,320.46

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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.