Home / 20,885,628.66-31,334,857.04-9,969,747.49

Finding the Fourth Proportional to 20,885,628.66, 31,334,857.04 and 9,969,747.49

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Solution

The fourth proportional to 20,885,628.66, 31,334,857.04 and 9,969,747.49 is: 14,957,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,628.66 : 31,334,857.04 = 9,969,747.49 : x
  2. Step 2: Convert to fraction form
    20,885,628.66/31,334,857.04 = 9,969,747.49/x
  3. Step 3: Cross multiply
    20,885,628.66x = 31,334,857.04 × 9,969,747.49
  4. Step 4: Simplify right side
    20,885,628.66x = 312,400,612,388,141.81
  5. Step 5: Solve for x
    x = 312,400,612,388,141.81/20,885,628.66
  6. Step 6: Final answer
    x = 14,957,682.99

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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.