Home / 20,651,036.07-28,498,486.74-11,359,558.37

Finding the Fourth Proportional to 20,651,036.07, 28,498,486.74 and 11,359,558.37

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Solution

The fourth proportional to 20,651,036.07, 28,498,486.74 and 11,359,558.37 is: 15,676,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651,036.07 : 28,498,486.74 = 11,359,558.37 : x
  2. Step 2: Convert to fraction form
    20,651,036.07/28,498,486.74 = 11,359,558.37/x
  3. Step 3: Cross multiply
    20,651,036.07x = 28,498,486.74 × 11,359,558.37
  4. Step 4: Simplify right side
    20,651,036.07x = 323,730,223,437,208.56
  5. Step 5: Solve for x
    x = 323,730,223,437,208.56/20,651,036.07
  6. Step 6: Final answer
    x = 15,676,221.88

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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.