Home / 28,656,018.40-42,984,027.60-19,040,216.80

Finding the Fourth Proportional to 28,656,018.40, 42,984,027.60 and 19,040,216.80

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Solution

The fourth proportional to 28,656,018.40, 42,984,027.60 and 19,040,216.80 is: 28,560,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,018.40 : 42,984,027.60 = 19,040,216.80 : x
  2. Step 2: Convert to fraction form
    28,656,018.40/42,984,027.60 = 19,040,216.80/x
  3. Step 3: Cross multiply
    28,656,018.40x = 42,984,027.60 × 19,040,216.80
  4. Step 4: Simplify right side
    28,656,018.40x = 818,425,204,441,183.75
  5. Step 5: Solve for x
    x = 818,425,204,441,183.75/28,656,018.40
  6. Step 6: Final answer
    x = 28,560,325.20

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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.