Home / 20,900,014.56-28,842,376.53-11,481,202.59

Finding the Fourth Proportional to 20,900,014.56, 28,842,376.53 and 11,481,202.59

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Solution

The fourth proportional to 20,900,014.56, 28,842,376.53 and 11,481,202.59 is: 15,844,255.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,014.56 : 28,842,376.53 = 11,481,202.59 : x
  2. Step 2: Convert to fraction form
    20,900,014.56/28,842,376.53 = 11,481,202.59/x
  3. Step 3: Cross multiply
    20,900,014.56x = 28,842,376.53 × 11,481,202.59
  4. Step 4: Simplify right side
    20,900,014.56x = 331,145,168,117,991.25
  5. Step 5: Solve for x
    x = 331,145,168,117,991.25/20,900,014.56
  6. Step 6: Final answer
    x = 15,844,255.38

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1.5x scale

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.