Home / 28,978,004.80-43,467,007.20-18,900,308.80

Finding the Fourth Proportional to 28,978,004.80, 43,467,007.20 and 18,900,308.80

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Solution

The fourth proportional to 28,978,004.80, 43,467,007.20 and 18,900,308.80 is: 28,350,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,004.80 : 43,467,007.20 = 18,900,308.80 : x
  2. Step 2: Convert to fraction form
    28,978,004.80/43,467,007.20 = 18,900,308.80/x
  3. Step 3: Cross multiply
    28,978,004.80x = 43,467,007.20 × 18,900,308.80
  4. Step 4: Simplify right side
    28,978,004.80x = 821,539,858,691,823.50
  5. Step 5: Solve for x
    x = 821,539,858,691,823.50/28,978,004.80
  6. Step 6: Final answer
    x = 28,350,463.20

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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.