Home / 18,379,739.76-25,364,645.13-10,120,408.50

Finding the Fourth Proportional to 18,379,739.76, 25,364,645.13 and 10,120,408.50

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Solution

The fourth proportional to 18,379,739.76, 25,364,645.13 and 10,120,408.50 is: 13,966,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,739.76 : 25,364,645.13 = 10,120,408.50 : x
  2. Step 2: Convert to fraction form
    18,379,739.76/25,364,645.13 = 10,120,408.50/x
  3. Step 3: Cross multiply
    18,379,739.76x = 25,364,645.13 × 10,120,408.50
  4. Step 4: Simplify right side
    18,379,739.76x = 256,700,570,173,135.59
  5. Step 5: Solve for x
    x = 256,700,570,173,135.59/18,379,739.76
  6. Step 6: Final answer
    x = 13,966,496.45

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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.