Home / 15,148,916.72-20,906,020.96-8,959,269.32

Finding the Fourth Proportional to 15,148,916.72, 20,906,020.96 and 8,959,269.32

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Solution

The fourth proportional to 15,148,916.72, 20,906,020.96 and 8,959,269.32 is: 12,364,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,916.72 : 20,906,020.96 = 8,959,269.32 : x
  2. Step 2: Convert to fraction form
    15,148,916.72/20,906,020.96 = 8,959,269.32/x
  3. Step 3: Cross multiply
    15,148,916.72x = 20,906,020.96 × 8,959,269.32
  4. Step 4: Simplify right side
    15,148,916.72x = 187,302,672,190,204.97
  5. Step 5: Solve for x
    x = 187,302,672,190,204.97/15,148,916.72
  6. Step 6: Final answer
    x = 12,364,096.76

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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.