Home / 20,282,333.16-27,989,717.23-10,989,900.78

Finding the Fourth Proportional to 20,282,333.16, 27,989,717.23 and 10,989,900.78

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Solution

The fourth proportional to 20,282,333.16, 27,989,717.23 and 10,989,900.78 is: 15,166,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,333.16 : 27,989,717.23 = 10,989,900.78 : x
  2. Step 2: Convert to fraction form
    20,282,333.16/27,989,717.23 = 10,989,900.78/x
  3. Step 3: Cross multiply
    20,282,333.16x = 27,989,717.23 × 10,989,900.78
  4. Step 4: Simplify right side
    20,282,333.16x = 307,604,215,217,956.44
  5. Step 5: Solve for x
    x = 307,604,215,217,956.44/20,282,333.16
  6. Step 6: Final answer
    x = 15,166,115.89

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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.