Home / 20,372,855.82-28,106,246.34-11,550,447.06

Finding the Fourth Proportional to 20,372,855.82, 28,106,246.34 and 11,550,447.06

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Solution

The fourth proportional to 20,372,855.82, 28,106,246.34 and 11,550,447.06 is: 15,934,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,855.82 : 28,106,246.34 = 11,550,447.06 : x
  2. Step 2: Convert to fraction form
    20,372,855.82/28,106,246.34 = 11,550,447.06/x
  3. Step 3: Cross multiply
    20,372,855.82x = 28,106,246.34 × 11,550,447.06
  4. Step 4: Simplify right side
    20,372,855.82x = 324,639,710,405,488.75
  5. Step 5: Solve for x
    x = 324,639,710,405,488.75/20,372,855.82
  6. Step 6: Final answer
    x = 15,934,914.24

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1.5x scale

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.