Home / 13,899,776.16-20,831,505.60-7,751,512.32

Finding the Fourth Proportional to 13,899,776.16, 20,831,505.60 and 7,751,512.32

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Solution

The fourth proportional to 13,899,776.16, 20,831,505.60 and 7,751,512.32 is: 11,617,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899,776.16 : 20,831,505.60 = 7,751,512.32 : x
  2. Step 2: Convert to fraction form
    13,899,776.16/20,831,505.60 = 7,751,512.32/x
  3. Step 3: Cross multiply
    13,899,776.16x = 20,831,505.60 × 7,751,512.32
  4. Step 4: Simplify right side
    13,899,776.16x = 161,475,672,302,549
  5. Step 5: Solve for x
    x = 161,475,672,302,549/13,899,776.16
  6. Step 6: Final answer
    x = 11,617,141.92

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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.