Home / 20,490,526.64-28,278,015.24-11,790,021.20

Finding the Fourth Proportional to 20,490,526.64, 28,278,015.24 and 11,790,021.20

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Solution

The fourth proportional to 20,490,526.64, 28,278,015.24 and 11,790,021.20 is: 16,270,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,490,526.64 : 28,278,015.24 = 11,790,021.20 : x
  2. Step 2: Convert to fraction form
    20,490,526.64/28,278,015.24 = 11,790,021.20/x
  3. Step 3: Cross multiply
    20,490,526.64x = 28,278,015.24 × 11,790,021.20
  4. Step 4: Simplify right side
    20,490,526.64x = 333,398,399,173,523.06
  5. Step 5: Solve for x
    x = 333,398,399,173,523.06/20,490,526.64
  6. Step 6: Final answer
    x = 16,270,855.55

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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.