Home / 804,187,121.76-1,205,589,808.05-279,488,052.24

Finding the Fourth Proportional to 804,187,121.76, 1,205,589,808.05 and 279,488,052.24

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Solution

The fourth proportional to 804,187,121.76, 1,205,589,808.05 and 279,488,052.24 is: 418,991,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,187,121.76 : 1,205,589,808.05 = 279,488,052.24 : x
  2. Step 2: Convert to fraction form
    804,187,121.76/1,205,589,808.05 = 279,488,052.24/x
  3. Step 3: Cross multiply
    804,187,121.76x = 1,205,589,808.05 × 279,488,052.24
  4. Step 4: Simplify right side
    804,187,121.76x = 336,947,947,252,289,984
  5. Step 5: Solve for x
    x = 336,947,947,252,289,984/804,187,121.76
  6. Step 6: Final answer
    x = 418,991,971.07

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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.