Home / 20,281,225.80-27,989,464.77-11,457,616.76

Finding the Fourth Proportional to 20,281,225.80, 27,989,464.77 and 11,457,616.76

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Solution

The fourth proportional to 20,281,225.80, 27,989,464.77 and 11,457,616.76 is: 15,812,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281,225.80 : 27,989,464.77 = 11,457,616.76 : x
  2. Step 2: Convert to fraction form
    20,281,225.80/27,989,464.77 = 11,457,616.76/x
  3. Step 3: Cross multiply
    20,281,225.80x = 27,989,464.77 × 11,457,616.76
  4. Step 4: Simplify right side
    20,281,225.80x = 320,692,560,649,424.94
  5. Step 5: Solve for x
    x = 320,692,560,649,424.94/20,281,225.80
  6. Step 6: Final answer
    x = 15,812,286.88

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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.