Home / 20,561,075,939.01-28,363,842,198.89-13,428,664,736.52

Finding the Fourth Proportional to 20,561,075,939.01, 28,363,842,198.89 and 13,428,664,736.52

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Solution

The fourth proportional to 20,561,075,939.01, 28,363,842,198.89 and 13,428,664,736.52 is: 18,524,737,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,075,939.01 : 28,363,842,198.89 = 13,428,664,736.52 : x
  2. Step 2: Convert to fraction form
    20,561,075,939.01/28,363,842,198.89 = 13,428,664,736.52/x
  3. Step 3: Cross multiply
    20,561,075,939.01x = 28,363,842,198.89 × 13,428,664,736.52
  4. Step 4: Simplify right side
    20,561,075,939.01x = 380,888,527,528,452,030,464
  5. Step 5: Solve for x
    x = 380,888,527,528,452,030,464/20,561,075,939.01
  6. Step 6: Final answer
    x = 18,524,737,161.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.