Home / 820,862,941,814.51-1,231,499,498,350.10-579,311,684,742.48

Finding the Fourth Proportional to 820,862,941,814.51, 1,231,499,498,350.10 and 579,311,684,742.48

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Solution

The fourth proportional to 820,862,941,814.51, 1,231,499,498,350.10 and 579,311,684,742.48 is: 869,112,263,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,862,941,814.51 : 1,231,499,498,350.10 = 579,311,684,742.48 : x
  2. Step 2: Convert to fraction form
    820,862,941,814.51/1,231,499,498,350.10 = 579,311,684,742.48/x
  3. Step 3: Cross multiply
    820,862,941,814.51x = 1,231,499,498,350.10 × 579,311,684,742.48
  4. Step 4: Simplify right side
    820,862,941,814.51x = 713,422,049,148,715,449,450,496
  5. Step 5: Solve for x
    x = 713,422,049,148,715,449,450,496/820,862,941,814.51
  6. Step 6: Final answer
    x = 869,112,263,213.76

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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.