Home / 12,199,980.58-18,300,102.36-3,680,390.86

Finding the Fourth Proportional to 12,199,980.58, 18,300,102.36 and 3,680,390.86

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Solution

The fourth proportional to 12,199,980.58, 18,300,102.36 and 3,680,390.86 is: 5,520,625.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199,980.58 : 18,300,102.36 = 3,680,390.86 : x
  2. Step 2: Convert to fraction form
    12,199,980.58/18,300,102.36 = 3,680,390.86/x
  3. Step 3: Cross multiply
    12,199,980.58x = 18,300,102.36 × 3,680,390.86
  4. Step 4: Simplify right side
    12,199,980.58x = 67,351,529,462,808.42
  5. Step 5: Solve for x
    x = 67,351,529,462,808.42/12,199,980.58
  6. Step 6: Final answer
    x = 5,520,625.96

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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.