Home / 680,930,813.88-1,021,539,686.58-220,833,107.64

Finding the Fourth Proportional to 680,930,813.88, 1,021,539,686.58 and 220,833,107.64

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Solution

The fourth proportional to 680,930,813.88, 1,021,539,686.58 and 220,833,107.64 is: 331,296,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,930,813.88 : 1,021,539,686.58 = 220,833,107.64 : x
  2. Step 2: Convert to fraction form
    680,930,813.88/1,021,539,686.58 = 220,833,107.64/x
  3. Step 3: Cross multiply
    680,930,813.88x = 1,021,539,686.58 × 220,833,107.64
  4. Step 4: Simplify right side
    680,930,813.88x = 225,589,783,565,052,992
  5. Step 5: Solve for x
    x = 225,589,783,565,052,992/680,930,813.88
  6. Step 6: Final answer
    x = 331,296,188.93

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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.