Home / 3,109,186.08-4,290,982.80-1,819,948.32

Finding the Fourth Proportional to 3,109,186.08, 4,290,982.80 and 1,819,948.32

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Solution

The fourth proportional to 3,109,186.08, 4,290,982.80 and 1,819,948.32 is: 2,511,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,186.08 : 4,290,982.80 = 1,819,948.32 : x
  2. Step 2: Convert to fraction form
    3,109,186.08/4,290,982.80 = 1,819,948.32/x
  3. Step 3: Cross multiply
    3,109,186.08x = 4,290,982.80 × 1,819,948.32
  4. Step 4: Simplify right side
    3,109,186.08x = 7,809,366,938,008.90
  5. Step 5: Solve for x
    x = 7,809,366,938,008.90/3,109,186.08
  6. Step 6: Final answer
    x = 2,511,707.80

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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.