Home / 605,078,780.97-907,882,168.86-211,887,813.21

Finding the Fourth Proportional to 605,078,780.97, 907,882,168.86 and 211,887,813.21

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Solution

The fourth proportional to 605,078,780.97, 907,882,168.86 and 211,887,813.21 is: 317,924,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,078,780.97 : 907,882,168.86 = 211,887,813.21 : x
  2. Step 2: Convert to fraction form
    605,078,780.97/907,882,168.86 = 211,887,813.21/x
  3. Step 3: Cross multiply
    605,078,780.97x = 907,882,168.86 × 211,887,813.21
  4. Step 4: Simplify right side
    605,078,780.97x = 192,369,167,412,097,376
  5. Step 5: Solve for x
    x = 192,369,167,412,097,376/605,078,780.97
  6. Step 6: Final answer
    x = 317,924,167.00

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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.