Home / 20,715,608.07-28,582,539.75-13,371,868.44

Finding the Fourth Proportional to 20,715,608.07, 28,582,539.75 and 13,371,868.44

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Solution

The fourth proportional to 20,715,608.07, 28,582,539.75 and 13,371,868.44 is: 18,449,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,608.07 : 28,582,539.75 = 13,371,868.44 : x
  2. Step 2: Convert to fraction form
    20,715,608.07/28,582,539.75 = 13,371,868.44/x
  3. Step 3: Cross multiply
    20,715,608.07x = 28,582,539.75 × 13,371,868.44
  4. Step 4: Simplify right side
    20,715,608.07x = 382,201,961,218,070.50
  5. Step 5: Solve for x
    x = 382,201,961,218,070.50/20,715,608.07
  6. Step 6: Final answer
    x = 18,449,951.36

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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.