Home / 18,379,143.48-27,571,709.93-5,426,603.52

Finding the Fourth Proportional to 18,379,143.48, 27,571,709.93 and 5,426,603.52

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Solution

The fourth proportional to 18,379,143.48, 27,571,709.93 and 5,426,603.52 is: 8,140,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,143.48 : 27,571,709.93 = 5,426,603.52 : x
  2. Step 2: Convert to fraction form
    18,379,143.48/27,571,709.93 = 5,426,603.52/x
  3. Step 3: Cross multiply
    18,379,143.48x = 27,571,709.93 × 5,426,603.52
  4. Step 4: Simplify right side
    18,379,143.48x = 149,620,738,158,556.94
  5. Step 5: Solve for x
    x = 149,620,738,158,556.94/18,379,143.48
  6. Step 6: Final answer
    x = 8,140,789.49

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1.5x scale

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.