Home / 12,127,419,523.20-18,174,868,845.49-9,438,486,883.94

Finding the Fourth Proportional to 12,127,419,523.20, 18,174,868,845.49 and 9,438,486,883.94

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Solution

The fourth proportional to 12,127,419,523.20, 18,174,868,845.49 and 9,438,486,883.94 is: 14,145,075,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,419,523.20 : 18,174,868,845.49 = 9,438,486,883.94 : x
  2. Step 2: Convert to fraction form
    12,127,419,523.20/18,174,868,845.49 = 9,438,486,883.94/x
  3. Step 3: Cross multiply
    12,127,419,523.20x = 18,174,868,845.49 × 9,438,486,883.94
  4. Step 4: Simplify right side
    12,127,419,523.20x = 171,543,261,215,487,131,648
  5. Step 5: Solve for x
    x = 171,543,261,215,487,131,648/12,127,419,523.20
  6. Step 6: Final answer
    x = 14,145,075,206.42

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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.