Home / 21,453,141.30-32,192,153.55-7,991,330.10

Finding the Fourth Proportional to 21,453,141.30, 32,192,153.55 and 7,991,330.10

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Solution

The fourth proportional to 21,453,141.30, 32,192,153.55 and 7,991,330.10 is: 11,991,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453,141.30 : 32,192,153.55 = 7,991,330.10 : x
  2. Step 2: Convert to fraction form
    21,453,141.30/32,192,153.55 = 7,991,330.10/x
  3. Step 3: Cross multiply
    21,453,141.30x = 32,192,153.55 × 7,991,330.10
  4. Step 4: Simplify right side
    21,453,141.30x = 257,258,125,647,936.84
  5. Step 5: Solve for x
    x = 257,258,125,647,936.84/21,453,141.30
  6. Step 6: Final answer
    x = 11,991,629.67

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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.