Home / 20,719,028.40-31,036,552.20-11,733,082.80

Finding the Fourth Proportional to 20,719,028.40, 31,036,552.20 and 11,733,082.80

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Solution

The fourth proportional to 20,719,028.40, 31,036,552.20 and 11,733,082.80 is: 17,575,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719,028.40 : 31,036,552.20 = 11,733,082.80 : x
  2. Step 2: Convert to fraction form
    20,719,028.40/31,036,552.20 = 11,733,082.80/x
  3. Step 3: Cross multiply
    20,719,028.40x = 31,036,552.20 × 11,733,082.80
  4. Step 4: Simplify right side
    20,719,028.40x = 364,154,436,789,122.19
  5. Step 5: Solve for x
    x = 364,154,436,789,122.19/20,719,028.40
  6. Step 6: Final answer
    x = 17,575,845.25

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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.