Home / 13,082,561.70-18,054,289.44-7,281,981.60

Finding the Fourth Proportional to 13,082,561.70, 18,054,289.44 and 7,281,981.60

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Solution

The fourth proportional to 13,082,561.70, 18,054,289.44 and 7,281,981.60 is: 10,049,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082,561.70 : 18,054,289.44 = 7,281,981.60 : x
  2. Step 2: Convert to fraction form
    13,082,561.70/18,054,289.44 = 7,281,981.60/x
  3. Step 3: Cross multiply
    13,082,561.70x = 18,054,289.44 × 7,281,981.60
  4. Step 4: Simplify right side
    13,082,561.70x = 131,471,003,503,154.31
  5. Step 5: Solve for x
    x = 131,471,003,503,154.31/13,082,561.70
  6. Step 6: Final answer
    x = 10,049,331.81

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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.