Home / 13,001,858.60-19,505,120.70-5,429,589.80

Finding the Fourth Proportional to 13,001,858.60, 19,505,120.70 and 5,429,589.80

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Solution

The fourth proportional to 13,001,858.60, 19,505,120.70 and 5,429,589.80 is: 8,145,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001,858.60 : 19,505,120.70 = 5,429,589.80 : x
  2. Step 2: Convert to fraction form
    13,001,858.60/19,505,120.70 = 5,429,589.80/x
  3. Step 3: Cross multiply
    13,001,858.60x = 19,505,120.70 × 5,429,589.80
  4. Step 4: Simplify right side
    13,001,858.60x = 105,904,804,400,488.86
  5. Step 5: Solve for x
    x = 105,904,804,400,488.86/13,001,858.60
  6. Step 6: Final answer
    x = 8,145,358.88

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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.