Home / 13,146,945.90-19,720,418.85-11,131,406.70

Finding the Fourth Proportional to 13,146,945.90, 19,720,418.85 and 11,131,406.70

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Solution

The fourth proportional to 13,146,945.90, 19,720,418.85 and 11,131,406.70 is: 16,697,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,945.90 : 19,720,418.85 = 11,131,406.70 : x
  2. Step 2: Convert to fraction form
    13,146,945.90/19,720,418.85 = 11,131,406.70/x
  3. Step 3: Cross multiply
    13,146,945.90x = 19,720,418.85 × 11,131,406.70
  4. Step 4: Simplify right side
    13,146,945.90x = 219,516,002,513,696.31
  5. Step 5: Solve for x
    x = 219,516,002,513,696.31/13,146,945.90
  6. Step 6: Final answer
    x = 16,697,110.05

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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.