Home / 15,188,576.79-20,957,981.20-9,224,880.19

Finding the Fourth Proportional to 15,188,576.79, 20,957,981.20 and 9,224,880.19

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Solution

The fourth proportional to 15,188,576.79, 20,957,981.20 and 9,224,880.19 is: 12,728,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,576.79 : 20,957,981.20 = 9,224,880.19 : x
  2. Step 2: Convert to fraction form
    15,188,576.79/20,957,981.20 = 9,224,880.19/x
  3. Step 3: Cross multiply
    15,188,576.79x = 20,957,981.20 × 9,224,880.19
  4. Step 4: Simplify right side
    15,188,576.79x = 193,334,865,592,704.81
  5. Step 5: Solve for x
    x = 193,334,865,592,704.81/15,188,576.79
  6. Step 6: Final answer
    x = 12,728,965.21

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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.