Home / 18,783,074.40-28,174,611.60-11,571,223.20

Finding the Fourth Proportional to 18,783,074.40, 28,174,611.60 and 11,571,223.20

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Solution

The fourth proportional to 18,783,074.40, 28,174,611.60 and 11,571,223.20 is: 17,356,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,074.40 : 28,174,611.60 = 11,571,223.20 : x
  2. Step 2: Convert to fraction form
    18,783,074.40/28,174,611.60 = 11,571,223.20/x
  3. Step 3: Cross multiply
    18,783,074.40x = 28,174,611.60 × 11,571,223.20
  4. Step 4: Simplify right side
    18,783,074.40x = 326,014,719,396,909.12
  5. Step 5: Solve for x
    x = 326,014,719,396,909.12/18,783,074.40
  6. Step 6: Final answer
    x = 17,356,834.80

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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.