Home / 20,671,857.57-28,527,526.26-11,252,919.42

Finding the Fourth Proportional to 20,671,857.57, 28,527,526.26 and 11,252,919.42

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Solution

The fourth proportional to 20,671,857.57, 28,527,526.26 and 11,252,919.42 is: 15,529,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,857.57 : 28,527,526.26 = 11,252,919.42 : x
  2. Step 2: Convert to fraction form
    20,671,857.57/28,527,526.26 = 11,252,919.42/x
  3. Step 3: Cross multiply
    20,671,857.57x = 28,527,526.26 × 11,252,919.42
  4. Step 4: Simplify right side
    20,671,857.57x = 321,017,954,113,076.31
  5. Step 5: Solve for x
    x = 321,017,954,113,076.31/20,671,857.57
  6. Step 6: Final answer
    x = 15,529,226.30

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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.