Home / 3,109,166.08-4,290,955.20-1,819,928.32

Finding the Fourth Proportional to 3,109,166.08, 4,290,955.20 and 1,819,928.32

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Solution

The fourth proportional to 3,109,166.08, 4,290,955.20 and 1,819,928.32 is: 2,511,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,166.08 : 4,290,955.20 = 1,819,928.32 : x
  2. Step 2: Convert to fraction form
    3,109,166.08/4,290,955.20 = 1,819,928.32/x
  3. Step 3: Cross multiply
    3,109,166.08x = 4,290,955.20 × 1,819,928.32
  4. Step 4: Simplify right side
    3,109,166.08x = 7,809,230,888,331.27
  5. Step 5: Solve for x
    x = 7,809,230,888,331.27/3,109,166.08
  6. Step 6: Final answer
    x = 2,511,680.20

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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.