Home / 18,636,968.75-25,718,709.78-10,903,321.22

Finding the Fourth Proportional to 18,636,968.75, 25,718,709.78 and 10,903,321.22

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Solution

The fourth proportional to 18,636,968.75, 25,718,709.78 and 10,903,321.22 is: 15,046,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636,968.75 : 25,718,709.78 = 10,903,321.22 : x
  2. Step 2: Convert to fraction form
    18,636,968.75/25,718,709.78 = 10,903,321.22/x
  3. Step 3: Cross multiply
    18,636,968.75x = 25,718,709.78 × 10,903,321.22
  4. Step 4: Simplify right side
    18,636,968.75x = 280,419,353,966,702
  5. Step 5: Solve for x
    x = 280,419,353,966,702/18,636,968.75
  6. Step 6: Final answer
    x = 15,046,403.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.