Home / 13,899,708.82-20,831,405.05-7,751,445.13

Finding the Fourth Proportional to 13,899,708.82, 20,831,405.05 and 7,751,445.13

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Solution

The fourth proportional to 13,899,708.82, 20,831,405.05 and 7,751,445.13 is: 11,617,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899,708.82 : 20,831,405.05 = 7,751,445.13 : x
  2. Step 2: Convert to fraction form
    13,899,708.82/20,831,405.05 = 7,751,445.13/x
  3. Step 3: Cross multiply
    13,899,708.82x = 20,831,405.05 × 7,751,445.13
  4. Step 4: Simplify right side
    13,899,708.82x = 161,473,493,225,879.91
  5. Step 5: Solve for x
    x = 161,473,493,225,879.91/13,899,708.82
  6. Step 6: Final answer
    x = 11,617,041.43

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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.