Home / 13,899,723.57-20,831,427.18-7,751,459.88

Finding the Fourth Proportional to 13,899,723.57, 20,831,427.18 and 7,751,459.88

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Solution

The fourth proportional to 13,899,723.57, 20,831,427.18 and 7,751,459.88 is: 11,617,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899,723.57 : 20,831,427.18 = 7,751,459.88 : x
  2. Step 2: Convert to fraction form
    13,899,723.57/20,831,427.18 = 7,751,459.88/x
  3. Step 3: Cross multiply
    13,899,723.57x = 20,831,427.18 × 7,751,459.88
  4. Step 4: Simplify right side
    13,899,723.57x = 161,473,972,028,911.53
  5. Step 5: Solve for x
    x = 161,473,972,028,911.53/13,899,723.57
  6. Step 6: Final answer
    x = 11,617,063.55

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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.