Home / 19,809,745.20-29,697,337.80-7,687,479.60

Finding the Fourth Proportional to 19,809,745.20, 29,697,337.80 and 7,687,479.60

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Solution

The fourth proportional to 19,809,745.20, 29,697,337.80 and 7,687,479.60 is: 11,524,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809,745.20 : 29,697,337.80 = 7,687,479.60 : x
  2. Step 2: Convert to fraction form
    19,809,745.20/29,697,337.80 = 7,687,479.60/x
  3. Step 3: Cross multiply
    19,809,745.20x = 29,697,337.80 × 7,687,479.60
  4. Step 4: Simplify right side
    19,809,745.20x = 228,297,678,511,808.88
  5. Step 5: Solve for x
    x = 228,297,678,511,808.88/19,809,745.20
  6. Step 6: Final answer
    x = 11,524,513.63

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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.