Home / 3,546,661.60-5,319,992.40-2,128,319.20

Finding the Fourth Proportional to 3,546,661.60, 5,319,992.40 and 2,128,319.20

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Solution

The fourth proportional to 3,546,661.60, 5,319,992.40 and 2,128,319.20 is: 3,192,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546,661.60 : 5,319,992.40 = 2,128,319.20 : x
  2. Step 2: Convert to fraction form
    3,546,661.60/5,319,992.40 = 2,128,319.20/x
  3. Step 3: Cross multiply
    3,546,661.60x = 5,319,992.40 × 2,128,319.20
  4. Step 4: Simplify right side
    3,546,661.60x = 11,322,641,968,774.08
  5. Step 5: Solve for x
    x = 11,322,641,968,774.08/3,546,661.60
  6. Step 6: Final answer
    x = 3,192,478.80

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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.