Home / 12,128,522.55-18,192,783.83-11,136,499.35

Finding the Fourth Proportional to 12,128,522.55, 18,192,783.83 and 11,136,499.35

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Solution

The fourth proportional to 12,128,522.55, 18,192,783.83 and 11,136,499.35 is: 16,704,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,522.55 : 18,192,783.83 = 11,136,499.35 : x
  2. Step 2: Convert to fraction form
    12,128,522.55/18,192,783.83 = 11,136,499.35/x
  3. Step 3: Cross multiply
    12,128,522.55x = 18,192,783.83 × 11,136,499.35
  4. Step 4: Simplify right side
    12,128,522.55x = 202,603,925,241,803
  5. Step 5: Solve for x
    x = 202,603,925,241,803/12,128,522.55
  6. Step 6: Final answer
    x = 16,704,749.03

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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.