Home / 13,843,136.40-20,756,410.20-7,124,672.40

Finding the Fourth Proportional to 13,843,136.40, 20,756,410.20 and 7,124,672.40

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Solution

The fourth proportional to 13,843,136.40, 20,756,410.20 and 7,124,672.40 is: 10,682,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843,136.40 : 20,756,410.20 = 7,124,672.40 : x
  2. Step 2: Convert to fraction form
    13,843,136.40/20,756,410.20 = 7,124,672.40/x
  3. Step 3: Cross multiply
    13,843,136.40x = 20,756,410.20 × 7,124,672.40
  4. Step 4: Simplify right side
    13,843,136.40x = 147,882,622,875,018.47
  5. Step 5: Solve for x
    x = 147,882,622,875,018.47/13,843,136.40
  6. Step 6: Final answer
    x = 10,682,739.71

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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.