Home / 18,802,997.21-25,938,586.45-12,280,444.67

Finding the Fourth Proportional to 18,802,997.21, 25,938,586.45 and 12,280,444.67

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Solution

The fourth proportional to 18,802,997.21, 25,938,586.45 and 12,280,444.67 is: 16,940,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,997.21 : 25,938,586.45 = 12,280,444.67 : x
  2. Step 2: Convert to fraction form
    18,802,997.21/25,938,586.45 = 12,280,444.67/x
  3. Step 3: Cross multiply
    18,802,997.21x = 25,938,586.45 × 12,280,444.67
  4. Step 4: Simplify right side
    18,802,997.21x = 318,537,375,717,236.69
  5. Step 5: Solve for x
    x = 318,537,375,717,236.69/18,802,997.21
  6. Step 6: Final answer
    x = 16,940,776.63

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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.