Home / 820,862,941,816.25-1,231,499,498,352.80-579,311,684,744.30

Finding the Fourth Proportional to 820,862,941,816.25, 1,231,499,498,352.80 and 579,311,684,744.30

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Solution

The fourth proportional to 820,862,941,816.25, 1,231,499,498,352.80 and 579,311,684,744.30 is: 869,112,263,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,862,941,816.25 : 1,231,499,498,352.80 = 579,311,684,744.30 : x
  2. Step 2: Convert to fraction form
    820,862,941,816.25/1,231,499,498,352.80 = 579,311,684,744.30/x
  3. Step 3: Cross multiply
    820,862,941,816.25x = 1,231,499,498,352.80 × 579,311,684,744.30
  4. Step 4: Simplify right side
    820,862,941,816.25x = 713,422,049,152,520,924,692,480
  5. Step 5: Solve for x
    x = 713,422,049,152,520,924,692,480/820,862,941,816.25
  6. Step 6: Final answer
    x = 869,112,263,216.56

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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.