Home / 13,579,196.40-18,738,916.38-7,467,624.90

Finding the Fourth Proportional to 13,579,196.40, 18,738,916.38 and 7,467,624.90

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Solution

The fourth proportional to 13,579,196.40, 18,738,916.38 and 7,467,624.90 is: 10,305,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,196.40 : 18,738,916.38 = 7,467,624.90 : x
  2. Step 2: Convert to fraction form
    13,579,196.40/18,738,916.38 = 7,467,624.90/x
  3. Step 3: Cross multiply
    13,579,196.40x = 18,738,916.38 × 7,467,624.90
  4. Step 4: Simplify right side
    13,579,196.40x = 139,935,198,558,305.86
  5. Step 5: Solve for x
    x = 139,935,198,558,305.86/13,579,196.40
  6. Step 6: Final answer
    x = 10,305,116.33

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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.