Home / 13,298,872.56-19,954,069.56-7,143,672.11

Finding the Fourth Proportional to 13,298,872.56, 19,954,069.56 and 7,143,672.11

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Solution

The fourth proportional to 13,298,872.56, 19,954,069.56 and 7,143,672.11 is: 10,718,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298,872.56 : 19,954,069.56 = 7,143,672.11 : x
  2. Step 2: Convert to fraction form
    13,298,872.56/19,954,069.56 = 7,143,672.11/x
  3. Step 3: Cross multiply
    13,298,872.56x = 19,954,069.56 × 7,143,672.11
  4. Step 4: Simplify right side
    13,298,872.56x = 142,545,330,097,001.62
  5. Step 5: Solve for x
    x = 142,545,330,097,001.62/13,298,872.56
  6. Step 6: Final answer
    x = 10,718,602.61

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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.