Home / 20,289,039.36-27,998,874.90-11,121,485.28

Finding the Fourth Proportional to 20,289,039.36, 27,998,874.90 and 11,121,485.28

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Solution

The fourth proportional to 20,289,039.36, 27,998,874.90 and 11,121,485.28 is: 15,347,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,039.36 : 27,998,874.90 = 11,121,485.28 : x
  2. Step 2: Convert to fraction form
    20,289,039.36/27,998,874.90 = 11,121,485.28/x
  3. Step 3: Cross multiply
    20,289,039.36x = 27,998,874.90 × 11,121,485.28
  4. Step 4: Simplify right side
    20,289,039.36x = 311,389,075,056,911.44
  5. Step 5: Solve for x
    x = 311,389,075,056,911.44/20,289,039.36
  6. Step 6: Final answer
    x = 15,347,650.01

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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.