Home / 20,928,527.99-28,881,704.52-11,509,691.25

Finding the Fourth Proportional to 20,928,527.99, 28,881,704.52 and 11,509,691.25

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Solution

The fourth proportional to 20,928,527.99, 28,881,704.52 and 11,509,691.25 is: 15,883,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,527.99 : 28,881,704.52 = 11,509,691.25 : x
  2. Step 2: Convert to fraction form
    20,928,527.99/28,881,704.52 = 11,509,691.25/x
  3. Step 3: Cross multiply
    20,928,527.99x = 28,881,704.52 × 11,509,691.25
  4. Step 4: Simplify right side
    20,928,527.99x = 332,419,501,907,235.81
  5. Step 5: Solve for x
    x = 332,419,501,907,235.81/20,928,527.99
  6. Step 6: Final answer
    x = 15,883,558.66

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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.