Home / 1,268,234,748,451.80-1,902,530,825,914.30-407,420,273,307.76

Finding the Fourth Proportional to 1,268,234,748,451.80, 1,902,530,825,914.30 and 407,420,273,307.76

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Solution

The fourth proportional to 1,268,234,748,451.80, 1,902,530,825,914.30 and 407,420,273,307.76 is: 611,187,818,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,234,748,451.80 : 1,902,530,825,914.30 = 407,420,273,307.76 : x
  2. Step 2: Convert to fraction form
    1,268,234,748,451.80/1,902,530,825,914.30 = 407,420,273,307.76/x
  3. Step 3: Cross multiply
    1,268,234,748,451.80x = 1,902,530,825,914.30 × 407,420,273,307.76
  4. Step 4: Simplify right side
    1,268,234,748,451.80x = 775,129,629,070,442,505,437,184
  5. Step 5: Solve for x
    x = 775,129,629,070,442,505,437,184/1,268,234,748,451.80
  6. Step 6: Final answer
    x = 611,187,818,356.72

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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.