Home / 20,666,662.34-28,519,469.12-11,247,052.94

Finding the Fourth Proportional to 20,666,662.34, 28,519,469.12 and 11,247,052.94

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Solution

The fourth proportional to 20,666,662.34, 28,519,469.12 and 11,247,052.94 is: 15,520,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666,662.34 : 28,519,469.12 = 11,247,052.94 : x
  2. Step 2: Convert to fraction form
    20,666,662.34/28,519,469.12 = 11,247,052.94/x
  3. Step 3: Cross multiply
    20,666,662.34x = 28,519,469.12 × 11,247,052.94
  4. Step 4: Simplify right side
    20,666,662.34x = 320,759,979,013,335.19
  5. Step 5: Solve for x
    x = 320,759,979,013,335.19/20,666,662.34
  6. Step 6: Final answer
    x = 15,520,647.40

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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.