Home / 72,879,311.82-100,573,435.08-39,839,697.66

Finding the Fourth Proportional to 72,879,311.82, 100,573,435.08 and 39,839,697.66

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Solution

The fourth proportional to 72,879,311.82, 100,573,435.08 and 39,839,697.66 is: 54,978,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,879,311.82 : 100,573,435.08 = 39,839,697.66 : x
  2. Step 2: Convert to fraction form
    72,879,311.82/100,573,435.08 = 39,839,697.66/x
  3. Step 3: Cross multiply
    72,879,311.82x = 100,573,435.08 × 39,839,697.66
  4. Step 4: Simplify right side
    72,879,311.82x = 4,006,815,246,214,837.50
  5. Step 5: Solve for x
    x = 4,006,815,246,214,837.50/72,879,311.82
  6. Step 6: Final answer
    x = 54,978,774.44

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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.