Home / 810,694,666.73-1,216,150,752.02-285,940,412.35

Finding the Fourth Proportional to 810,694,666.73, 1,216,150,752.02 and 285,940,412.35

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Solution

The fourth proportional to 810,694,666.73, 1,216,150,752.02 and 285,940,412.35 is: 428,948,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,694,666.73 : 1,216,150,752.02 = 285,940,412.35 : x
  2. Step 2: Convert to fraction form
    810,694,666.73/1,216,150,752.02 = 285,940,412.35/x
  3. Step 3: Cross multiply
    810,694,666.73x = 1,216,150,752.02 × 285,940,412.35
  4. Step 4: Simplify right side
    810,694,666.73x = 347,746,647,507,891,392
  5. Step 5: Solve for x
    x = 347,746,647,507,891,392/810,694,666.73
  6. Step 6: Final answer
    x = 428,948,976.45

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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.