Home / 12,640,179.60-18,928,193.40-6,953,979.60

Finding the Fourth Proportional to 12,640,179.60, 18,928,193.40 and 6,953,979.60

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Solution

The fourth proportional to 12,640,179.60, 18,928,193.40 and 6,953,979.60 is: 10,413,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,179.60 : 18,928,193.40 = 6,953,979.60 : x
  2. Step 2: Convert to fraction form
    12,640,179.60/18,928,193.40 = 6,953,979.60/x
  3. Step 3: Cross multiply
    12,640,179.60x = 18,928,193.40 × 6,953,979.60
  4. Step 4: Simplify right side
    12,640,179.60x = 131,626,270,768,454.62
  5. Step 5: Solve for x
    x = 131,626,270,768,454.62/12,640,179.60
  6. Step 6: Final answer
    x = 10,413,322.83

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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.