Home / 1,268,234,748,447.80-1,902,530,825,908.30-407,420,273,303.76

Finding the Fourth Proportional to 1,268,234,748,447.80, 1,902,530,825,908.30 and 407,420,273,303.76

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Solution

The fourth proportional to 1,268,234,748,447.80, 1,902,530,825,908.30 and 407,420,273,303.76 is: 611,187,818,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,234,748,447.80 : 1,902,530,825,908.30 = 407,420,273,303.76 : x
  2. Step 2: Convert to fraction form
    1,268,234,748,447.80/1,902,530,825,908.30 = 407,420,273,303.76/x
  3. Step 3: Cross multiply
    1,268,234,748,447.80x = 1,902,530,825,908.30 × 407,420,273,303.76
  4. Step 4: Simplify right side
    1,268,234,748,447.80x = 775,129,629,060,387,852,779,520
  5. Step 5: Solve for x
    x = 775,129,629,060,387,852,779,520/1,268,234,748,447.80
  6. Step 6: Final answer
    x = 611,187,818,350.72

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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.