Home / 18,748,882.20-28,123,323.30-13,075,512.60

Finding the Fourth Proportional to 18,748,882.20, 28,123,323.30 and 13,075,512.60

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Solution

The fourth proportional to 18,748,882.20, 28,123,323.30 and 13,075,512.60 is: 19,613,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748,882.20 : 28,123,323.30 = 13,075,512.60 : x
  2. Step 2: Convert to fraction form
    18,748,882.20/28,123,323.30 = 13,075,512.60/x
  3. Step 3: Cross multiply
    18,748,882.20x = 28,123,323.30 × 13,075,512.60
  4. Step 4: Simplify right side
    18,748,882.20x = 367,726,868,163,023.56
  5. Step 5: Solve for x
    x = 367,726,868,163,023.56/18,748,882.20
  6. Step 6: Final answer
    x = 19,613,268.90

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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.