Home / 13,439,143.80-20,158,715.70-3,855,491.10

Finding the Fourth Proportional to 13,439,143.80, 20,158,715.70 and 3,855,491.10

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Solution

The fourth proportional to 13,439,143.80, 20,158,715.70 and 3,855,491.10 is: 5,783,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,143.80 : 20,158,715.70 = 3,855,491.10 : x
  2. Step 2: Convert to fraction form
    13,439,143.80/20,158,715.70 = 3,855,491.10/x
  3. Step 3: Cross multiply
    13,439,143.80x = 20,158,715.70 × 3,855,491.10
  4. Step 4: Simplify right side
    13,439,143.80x = 77,721,748,968,780.27
  5. Step 5: Solve for x
    x = 77,721,748,968,780.27/13,439,143.80
  6. Step 6: Final answer
    x = 5,783,236.65

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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.