Home / 57,109,899.06-78,812,576.46-31,004,396.10

Finding the Fourth Proportional to 57,109,899.06, 78,812,576.46 and 31,004,396.10

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Solution

The fourth proportional to 57,109,899.06, 78,812,576.46 and 31,004,396.10 is: 42,786,563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109,899.06 : 78,812,576.46 = 31,004,396.10 : x
  2. Step 2: Convert to fraction form
    57,109,899.06/78,812,576.46 = 31,004,396.10/x
  3. Step 3: Cross multiply
    57,109,899.06x = 78,812,576.46 × 31,004,396.10
  4. Step 4: Simplify right side
    57,109,899.06x = 2,443,536,338,227,375.50
  5. Step 5: Solve for x
    x = 2,443,536,338,227,375.50/57,109,899.06
  6. Step 6: Final answer
    x = 42,786,563.77

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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.