Home / 20,775,615.12-28,670,438.97-11,356,598.41

Finding the Fourth Proportional to 20,775,615.12, 28,670,438.97 and 11,356,598.41

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Solution

The fourth proportional to 20,775,615.12, 28,670,438.97 and 11,356,598.41 is: 15,672,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,615.12 : 28,670,438.97 = 11,356,598.41 : x
  2. Step 2: Convert to fraction form
    20,775,615.12/28,670,438.97 = 11,356,598.41/x
  3. Step 3: Cross multiply
    20,775,615.12x = 28,670,438.97 × 11,356,598.41
  4. Step 4: Simplify right side
    20,775,615.12x = 325,598,661,549,027.94
  5. Step 5: Solve for x
    x = 325,598,661,549,027.94/20,775,615.12
  6. Step 6: Final answer
    x = 15,672,155.06

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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.