Home / 1,238,694,493.01-1,858,215,900.60-398,055,405.76

Finding the Fourth Proportional to 1,238,694,493.01, 1,858,215,900.60 and 398,055,405.76

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Solution

The fourth proportional to 1,238,694,493.01, 1,858,215,900.60 and 398,055,405.76 is: 597,139,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,694,493.01 : 1,858,215,900.60 = 398,055,405.76 : x
  2. Step 2: Convert to fraction form
    1,238,694,493.01/1,858,215,900.60 = 398,055,405.76/x
  3. Step 3: Cross multiply
    1,238,694,493.01x = 1,858,215,900.60 × 398,055,405.76
  4. Step 4: Simplify right side
    1,238,694,493.01x = 739,672,884,298,371,200
  5. Step 5: Solve for x
    x = 739,672,884,298,371,200/1,238,694,493.01
  6. Step 6: Final answer
    x = 597,139,075.43

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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.