Home / 15,287,916.97-21,096,688.30-8,318,621.89

Finding the Fourth Proportional to 15,287,916.97, 21,096,688.30 and 8,318,621.89

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Solution

The fourth proportional to 15,287,916.97, 21,096,688.30 and 8,318,621.89 is: 11,479,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,916.97 : 21,096,688.30 = 8,318,621.89 : x
  2. Step 2: Convert to fraction form
    15,287,916.97/21,096,688.30 = 8,318,621.89/x
  3. Step 3: Cross multiply
    15,287,916.97x = 21,096,688.30 × 8,318,621.89
  4. Step 4: Simplify right side
    15,287,916.97x = 175,495,373,098,886.88
  5. Step 5: Solve for x
    x = 175,495,373,098,886.88/15,287,916.97
  6. Step 6: Final answer
    x = 11,479,351.53

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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.