Home / 18,809,036.64-28,213,905-5,346,214.56

Finding the Fourth Proportional to 18,809,036.64, 28,213,905 and 5,346,214.56

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Solution

The fourth proportional to 18,809,036.64, 28,213,905 and 5,346,214.56 is: 8,019,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,036.64 : 28,213,905 = 5,346,214.56 : x
  2. Step 2: Convert to fraction form
    18,809,036.64/28,213,905 = 5,346,214.56/x
  3. Step 3: Cross multiply
    18,809,036.64x = 28,213,905 × 5,346,214.56
  4. Step 4: Simplify right side
    18,809,036.64x = 150,837,589,705,456.78
  5. Step 5: Solve for x
    x = 150,837,589,705,456.78/18,809,036.64
  6. Step 6: Final answer
    x = 8,019,421.33

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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.