Home / 20,134,015.85-30,144,741.32-10,878,828.68

Finding the Fourth Proportional to 20,134,015.85, 30,144,741.32 and 10,878,828.68

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Solution

The fourth proportional to 20,134,015.85, 30,144,741.32 and 10,878,828.68 is: 16,287,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134,015.85 : 30,144,741.32 = 10,878,828.68 : x
  2. Step 2: Convert to fraction form
    20,134,015.85/30,144,741.32 = 10,878,828.68/x
  3. Step 3: Cross multiply
    20,134,015.85x = 30,144,741.32 × 10,878,828.68
  4. Step 4: Simplify right side
    20,134,015.85x = 327,939,476,525,756
  5. Step 5: Solve for x
    x = 327,939,476,525,756/20,134,015.85
  6. Step 6: Final answer
    x = 16,287,832.44

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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.