Home / 13,899,713.07-20,831,411.43-7,751,449.38

Finding the Fourth Proportional to 13,899,713.07, 20,831,411.43 and 7,751,449.38

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Solution

The fourth proportional to 13,899,713.07, 20,831,411.43 and 7,751,449.38 is: 11,617,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899,713.07 : 20,831,411.43 = 7,751,449.38 : x
  2. Step 2: Convert to fraction form
    13,899,713.07/20,831,411.43 = 7,751,449.38/x
  3. Step 3: Cross multiply
    13,899,713.07x = 20,831,411.43 × 7,751,449.38
  4. Step 4: Simplify right side
    13,899,713.07x = 161,473,631,213,598.41
  5. Step 5: Solve for x
    x = 161,473,631,213,598.41/13,899,713.07
  6. Step 6: Final answer
    x = 11,617,047.81

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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.