Home / 13,446,012.80-20,190,014.40-7,777,308.80

Finding the Fourth Proportional to 13,446,012.80, 20,190,014.40 and 7,777,308.80

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Solution

The fourth proportional to 13,446,012.80, 20,190,014.40 and 7,777,308.80 is: 11,678,107.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446,012.80 : 20,190,014.40 = 7,777,308.80 : x
  2. Step 2: Convert to fraction form
    13,446,012.80/20,190,014.40 = 7,777,308.80/x
  3. Step 3: Cross multiply
    13,446,012.80x = 20,190,014.40 × 7,777,308.80
  4. Step 4: Simplify right side
    13,446,012.80x = 157,023,976,665,246.72
  5. Step 5: Solve for x
    x = 157,023,976,665,246.72/13,446,012.80
  6. Step 6: Final answer
    x = 11,678,107.03

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1.5x scale

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.