Home / 13,831,260.21-20,761,499.48-7,771,170.69

Finding the Fourth Proportional to 13,831,260.21, 20,761,499.48 and 7,771,170.69

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Solution

The fourth proportional to 13,831,260.21, 20,761,499.48 and 7,771,170.69 is: 11,664,964.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,260.21 : 20,761,499.48 = 7,771,170.69 : x
  2. Step 2: Convert to fraction form
    13,831,260.21/20,761,499.48 = 7,771,170.69/x
  3. Step 3: Cross multiply
    13,831,260.21x = 20,761,499.48 × 7,771,170.69
  4. Step 4: Simplify right side
    13,831,260.21x = 161,341,156,200,570.41
  5. Step 5: Solve for x
    x = 161,341,156,200,570.41/13,831,260.21
  6. Step 6: Final answer
    x = 11,664,964.27

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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.