Home / 804,187,124.26-1,205,589,811.80-279,488,054.74

Finding the Fourth Proportional to 804,187,124.26, 1,205,589,811.80 and 279,488,054.74

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Solution

The fourth proportional to 804,187,124.26, 1,205,589,811.80 and 279,488,054.74 is: 418,991,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,187,124.26 : 1,205,589,811.80 = 279,488,054.74 : x
  2. Step 2: Convert to fraction form
    804,187,124.26/1,205,589,811.80 = 279,488,054.74/x
  3. Step 3: Cross multiply
    804,187,124.26x = 1,205,589,811.80 × 279,488,054.74
  4. Step 4: Simplify right side
    804,187,124.26x = 336,947,951,314,344,704
  5. Step 5: Solve for x
    x = 336,947,951,314,344,704/804,187,124.26
  6. Step 6: Final answer
    x = 418,991,974.81

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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.