Home / 20,561,075,938.01-28,363,842,197.51-13,428,664,735.52

Finding the Fourth Proportional to 20,561,075,938.01, 28,363,842,197.51 and 13,428,664,735.52

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Solution

The fourth proportional to 20,561,075,938.01, 28,363,842,197.51 and 13,428,664,735.52 is: 18,524,737,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,075,938.01 : 28,363,842,197.51 = 13,428,664,735.52 : x
  2. Step 2: Convert to fraction form
    20,561,075,938.01/28,363,842,197.51 = 13,428,664,735.52/x
  3. Step 3: Cross multiply
    20,561,075,938.01x = 28,363,842,197.51 × 13,428,664,735.52
  4. Step 4: Simplify right side
    20,561,075,938.01x = 380,888,527,481,556,631,552
  5. Step 5: Solve for x
    x = 380,888,527,481,556,631,552/20,561,075,938.01
  6. Step 6: Final answer
    x = 18,524,737,160.15

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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.