Home / 31,589,172.72-47,386,650.78-8,869,916.88

Finding the Fourth Proportional to 31,589,172.72, 47,386,650.78 and 8,869,916.88

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Solution

The fourth proportional to 31,589,172.72, 47,386,650.78 and 8,869,916.88 is: 13,305,687.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589,172.72 : 47,386,650.78 = 8,869,916.88 : x
  2. Step 2: Convert to fraction form
    31,589,172.72/47,386,650.78 = 8,869,916.88/x
  3. Step 3: Cross multiply
    31,589,172.72x = 47,386,650.78 × 8,869,916.88
  4. Step 4: Simplify right side
    31,589,172.72x = 420,315,653,640,187.19
  5. Step 5: Solve for x
    x = 420,315,653,640,187.19/31,589,172.72
  6. Step 6: Final answer
    x = 13,305,687.28

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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.