Home / 20,711,022.87-28,579,894.58-11,418,085.01

Finding the Fourth Proportional to 20,711,022.87, 28,579,894.58 and 11,418,085.01

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Solution

The fourth proportional to 20,711,022.87, 28,579,894.58 and 11,418,085.01 is: 15,756,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711,022.87 : 28,579,894.58 = 11,418,085.01 : x
  2. Step 2: Convert to fraction form
    20,711,022.87/28,579,894.58 = 11,418,085.01/x
  3. Step 3: Cross multiply
    20,711,022.87x = 28,579,894.58 × 11,418,085.01
  4. Step 4: Simplify right side
    20,711,022.87x = 326,327,665,691,288.38
  5. Step 5: Solve for x
    x = 326,327,665,691,288.38/20,711,022.87
  6. Step 6: Final answer
    x = 15,756,231.25

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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.