Home / 13,012,911.90-19,519,367.85-12,397,052.70

Finding the Fourth Proportional to 13,012,911.90, 19,519,367.85 and 12,397,052.70

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Solution

The fourth proportional to 13,012,911.90, 19,519,367.85 and 12,397,052.70 is: 18,595,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,911.90 : 19,519,367.85 = 12,397,052.70 : x
  2. Step 2: Convert to fraction form
    13,012,911.90/19,519,367.85 = 12,397,052.70/x
  3. Step 3: Cross multiply
    13,012,911.90x = 19,519,367.85 × 12,397,052.70
  4. Step 4: Simplify right side
    13,012,911.90x = 241,982,631,907,135.69
  5. Step 5: Solve for x
    x = 241,982,631,907,135.69/13,012,911.90
  6. Step 6: Final answer
    x = 18,595,579.05

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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.