Home / 13,682,161.20-18,881,384.32-7,487,209.37

Finding the Fourth Proportional to 13,682,161.20, 18,881,384.32 and 7,487,209.37

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Solution

The fourth proportional to 13,682,161.20, 18,881,384.32 and 7,487,209.37 is: 10,332,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682,161.20 : 18,881,384.32 = 7,487,209.37 : x
  2. Step 2: Convert to fraction form
    13,682,161.20/18,881,384.32 = 7,487,209.37/x
  3. Step 3: Cross multiply
    13,682,161.20x = 18,881,384.32 × 7,487,209.37
  4. Step 4: Simplify right side
    13,682,161.20x = 141,368,877,627,760.50
  5. Step 5: Solve for x
    x = 141,368,877,627,760.50/13,682,161.20
  6. Step 6: Final answer
    x = 10,332,349.95

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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.