Home / 10,981,750.40-16,464,945.60-6,491,715.20

Finding the Fourth Proportional to 10,981,750.40, 16,464,945.60 and 6,491,715.20

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Solution

The fourth proportional to 10,981,750.40, 16,464,945.60 and 6,491,715.20 is: 9,733,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981,750.40 : 16,464,945.60 = 6,491,715.20 : x
  2. Step 2: Convert to fraction form
    10,981,750.40/16,464,945.60 = 6,491,715.20/x
  3. Step 3: Cross multiply
    10,981,750.40x = 16,464,945.60 × 6,491,715.20
  4. Step 4: Simplify right side
    10,981,750.40x = 106,885,737,618,693.12
  5. Step 5: Solve for x
    x = 106,885,737,618,693.12/10,981,750.40
  6. Step 6: Final answer
    x = 9,733,032.87

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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.