Home / 13,881,430.56-20,821,533.12-3,784,051.92

Finding the Fourth Proportional to 13,881,430.56, 20,821,533.12 and 3,784,051.92

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Solution

The fourth proportional to 13,881,430.56, 20,821,533.12 and 3,784,051.92 is: 5,675,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881,430.56 : 20,821,533.12 = 3,784,051.92 : x
  2. Step 2: Convert to fraction form
    13,881,430.56/20,821,533.12 = 3,784,051.92/x
  3. Step 3: Cross multiply
    13,881,430.56x = 20,821,533.12 × 3,784,051.92
  4. Step 4: Simplify right side
    13,881,430.56x = 78,789,762,380,079.59
  5. Step 5: Solve for x
    x = 78,789,762,380,079.59/13,881,430.56
  6. Step 6: Final answer
    x = 5,675,910.85

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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.