Home / 1,275,489,758,687.30-1,913,236,479,402.80-520,873,340,903.42

Finding the Fourth Proportional to 1,275,489,758,687.30, 1,913,236,479,402.80 and 520,873,340,903.42

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Solution

The fourth proportional to 1,275,489,758,687.30, 1,913,236,479,402.80 and 520,873,340,903.42 is: 781,310,763,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,489,758,687.30 : 1,913,236,479,402.80 = 520,873,340,903.42 : x
  2. Step 2: Convert to fraction form
    1,275,489,758,687.30/1,913,236,479,402.80 = 520,873,340,903.42/x
  3. Step 3: Cross multiply
    1,275,489,758,687.30x = 1,913,236,479,402.80 × 520,873,340,903.42
  4. Step 4: Simplify right side
    1,275,489,758,687.30x = 996,553,876,964,833,721,581,568
  5. Step 5: Solve for x
    x = 996,553,876,964,833,721,581,568/1,275,489,758,687.30
  6. Step 6: Final answer
    x = 781,310,763,318.45

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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.