Home / 12,586,218.40-18,883,993.20-12,119,658.40

Finding the Fourth Proportional to 12,586,218.40, 18,883,993.20 and 12,119,658.40

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Solution

The fourth proportional to 12,586,218.40, 18,883,993.20 and 12,119,658.40 is: 18,183,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,218.40 : 18,883,993.20 = 12,119,658.40 : x
  2. Step 2: Convert to fraction form
    12,586,218.40/18,883,993.20 = 12,119,658.40/x
  3. Step 3: Cross multiply
    12,586,218.40x = 18,883,993.20 × 12,119,658.40
  4. Step 4: Simplify right side
    12,586,218.40x = 228,867,546,811,922.88
  5. Step 5: Solve for x
    x = 228,867,546,811,922.88/12,586,218.40
  6. Step 6: Final answer
    x = 18,183,980.25

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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.