Home / 12,212,886.40-18,312,331.20-3,691,945.60

Finding the Fourth Proportional to 12,212,886.40, 18,312,331.20 and 3,691,945.60

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Solution

The fourth proportional to 12,212,886.40, 18,312,331.20 and 3,691,945.60 is: 5,535,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,886.40 : 18,312,331.20 = 3,691,945.60 : x
  2. Step 2: Convert to fraction form
    12,212,886.40/18,312,331.20 = 3,691,945.60/x
  3. Step 3: Cross multiply
    12,212,886.40x = 18,312,331.20 × 3,691,945.60
  4. Step 4: Simplify right side
    12,212,886.40x = 67,608,130,599,582.72
  5. Step 5: Solve for x
    x = 67,608,130,599,582.72/12,212,886.40
  6. Step 6: Final answer
    x = 5,535,802.79

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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.