Home / 28,469,619.60-42,704,429.40-13,116,879.60

Finding the Fourth Proportional to 28,469,619.60, 42,704,429.40 and 13,116,879.60

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Solution

The fourth proportional to 28,469,619.60, 42,704,429.40 and 13,116,879.60 is: 19,675,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469,619.60 : 42,704,429.40 = 13,116,879.60 : x
  2. Step 2: Convert to fraction form
    28,469,619.60/42,704,429.40 = 13,116,879.60/x
  3. Step 3: Cross multiply
    28,469,619.60x = 42,704,429.40 × 13,116,879.60
  4. Step 4: Simplify right side
    28,469,619.60x = 560,148,858,826,500.19
  5. Step 5: Solve for x
    x = 560,148,858,826,500.19/28,469,619.60
  6. Step 6: Final answer
    x = 19,675,319.40

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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.