Home / 13,563,790.50-18,718,053.10-7,368,861.54

Finding the Fourth Proportional to 13,563,790.50, 18,718,053.10 and 7,368,861.54

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Solution

The fourth proportional to 13,563,790.50, 18,718,053.10 and 7,368,861.54 is: 10,169,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563,790.50 : 18,718,053.10 = 7,368,861.54 : x
  2. Step 2: Convert to fraction form
    13,563,790.50/18,718,053.10 = 7,368,861.54/x
  3. Step 3: Cross multiply
    13,563,790.50x = 18,718,053.10 × 7,368,861.54
  4. Step 4: Simplify right side
    13,563,790.50x = 137,930,741,592,267.78
  5. Step 5: Solve for x
    x = 137,930,741,592,267.78/13,563,790.50
  6. Step 6: Final answer
    x = 10,169,040.99

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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.