Home / 20,994,039.40-31,471,244.70-11,395,268.20

Finding the Fourth Proportional to 20,994,039.40, 31,471,244.70 and 11,395,268.20

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Solution

The fourth proportional to 20,994,039.40, 31,471,244.70 and 11,395,268.20 is: 17,082,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994,039.40 : 31,471,244.70 = 11,395,268.20 : x
  2. Step 2: Convert to fraction form
    20,994,039.40/31,471,244.70 = 11,395,268.20/x
  3. Step 3: Cross multiply
    20,994,039.40x = 31,471,244.70 × 11,395,268.20
  4. Step 4: Simplify right side
    20,994,039.40x = 358,623,273,944,328.50
  5. Step 5: Solve for x
    x = 358,623,273,944,328.50/20,994,039.40
  6. Step 6: Final answer
    x = 17,082,147.32

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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.