Home / 900,383,401.11-1,350,643,216.64-278,661,515.34

Finding the Fourth Proportional to 900,383,401.11, 1,350,643,216.64 and 278,661,515.34

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Solution

The fourth proportional to 900,383,401.11, 1,350,643,216.64 and 278,661,515.34 is: 418,013,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,383,401.11 : 1,350,643,216.64 = 278,661,515.34 : x
  2. Step 2: Convert to fraction form
    900,383,401.11/1,350,643,216.64 = 278,661,515.34/x
  3. Step 3: Cross multiply
    900,383,401.11x = 1,350,643,216.64 × 278,661,515.34
  4. Step 4: Simplify right side
    900,383,401.11x = 376,372,285,430,222,272
  5. Step 5: Solve for x
    x = 376,372,285,430,222,272/900,383,401.11
  6. Step 6: Final answer
    x = 418,013,354.05

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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.