Home / 13,763,039.78-18,994,205.10-7,569,178.08

Finding the Fourth Proportional to 13,763,039.78, 18,994,205.10 and 7,569,178.08

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Solution

The fourth proportional to 13,763,039.78, 18,994,205.10 and 7,569,178.08 is: 10,446,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763,039.78 : 18,994,205.10 = 7,569,178.08 : x
  2. Step 2: Convert to fraction form
    13,763,039.78/18,994,205.10 = 7,569,178.08/x
  3. Step 3: Cross multiply
    13,763,039.78x = 18,994,205.10 × 7,569,178.08
  4. Step 4: Simplify right side
    13,763,039.78x = 143,770,520,889,944.22
  5. Step 5: Solve for x
    x = 143,770,520,889,944.22/13,763,039.78
  6. Step 6: Final answer
    x = 10,446,131.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.