Home / 12,885,659.92-17,781,295.08-7,084,291.60

Finding the Fourth Proportional to 12,885,659.92, 17,781,295.08 and 7,084,291.60

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Solution

The fourth proportional to 12,885,659.92, 17,781,295.08 and 7,084,291.60 is: 9,775,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,659.92 : 17,781,295.08 = 7,084,291.60 : x
  2. Step 2: Convert to fraction form
    12,885,659.92/17,781,295.08 = 7,084,291.60/x
  3. Step 3: Cross multiply
    12,885,659.92x = 17,781,295.08 × 7,084,291.60
  4. Step 4: Simplify right side
    12,885,659.92x = 125,967,879,372,365.31
  5. Step 5: Solve for x
    x = 125,967,879,372,365.31/12,885,659.92
  6. Step 6: Final answer
    x = 9,775,819.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.