Home / 806,573,617.20-1,209,860,425.80-397,825,585.20

Finding the Fourth Proportional to 806,573,617.20, 1,209,860,425.80 and 397,825,585.20

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Solution

The fourth proportional to 806,573,617.20, 1,209,860,425.80 and 397,825,585.20 is: 596,738,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,573,617.20 : 1,209,860,425.80 = 397,825,585.20 : x
  2. Step 2: Convert to fraction form
    806,573,617.20/1,209,860,425.80 = 397,825,585.20/x
  3. Step 3: Cross multiply
    806,573,617.20x = 1,209,860,425.80 × 397,825,585.20
  4. Step 4: Simplify right side
    806,573,617.20x = 481,313,431,904,206,144
  5. Step 5: Solve for x
    x = 481,313,431,904,206,144/806,573,617.20
  6. Step 6: Final answer
    x = 596,738,377.80

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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.