Home / 28,339,933,949.55-39,108,876,430.44-15,479,582,110.32

Finding the Fourth Proportional to 28,339,933,949.55, 39,108,876,430.44 and 15,479,582,110.32

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Solution

The fourth proportional to 28,339,933,949.55, 39,108,876,430.44 and 15,479,582,110.32 is: 21,361,696,361.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,933,949.55 : 39,108,876,430.44 = 15,479,582,110.32 : x
  2. Step 2: Convert to fraction form
    28,339,933,949.55/39,108,876,430.44 = 15,479,582,110.32/x
  3. Step 3: Cross multiply
    28,339,933,949.55x = 39,108,876,430.44 × 15,479,582,110.32
  4. Step 4: Simplify right side
    28,339,933,949.55x = 605,389,063,947,354,505,216
  5. Step 5: Solve for x
    x = 605,389,063,947,354,505,216/28,339,933,949.55
  6. Step 6: Final answer
    x = 21,361,696,361.93

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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.