Home / 1,427,574,939.98-2,141,261,321.56-378,289,911.83

Finding the Fourth Proportional to 1,427,574,939.98, 2,141,261,321.56 and 378,289,911.83

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Solution

The fourth proportional to 1,427,574,939.98, 2,141,261,321.56 and 378,289,911.83 is: 567,408,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,574,939.98 : 2,141,261,321.56 = 378,289,911.83 : x
  2. Step 2: Convert to fraction form
    1,427,574,939.98/2,141,261,321.56 = 378,289,911.83/x
  3. Step 3: Cross multiply
    1,427,574,939.98x = 2,141,261,321.56 × 378,289,911.83
  4. Step 4: Simplify right side
    1,427,574,939.98x = 810,017,556,526,231,808
  5. Step 5: Solve for x
    x = 810,017,556,526,231,808/1,427,574,939.98
  6. Step 6: Final answer
    x = 567,408,080.55

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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.