Home / 18,709,554.22-28,066,991.64-5,756,778.88

Finding the Fourth Proportional to 18,709,554.22, 28,066,991.64 and 5,756,778.88

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Solution

The fourth proportional to 18,709,554.22, 28,066,991.64 and 5,756,778.88 is: 8,635,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,554.22 : 28,066,991.64 = 5,756,778.88 : x
  2. Step 2: Convert to fraction form
    18,709,554.22/28,066,991.64 = 5,756,778.88/x
  3. Step 3: Cross multiply
    18,709,554.22x = 28,066,991.64 × 5,756,778.88
  4. Step 4: Simplify right side
    18,709,554.22x = 161,575,464,698,288.56
  5. Step 5: Solve for x
    x = 161,575,464,698,288.56/18,709,554.22
  6. Step 6: Final answer
    x = 8,635,986.88

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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.