Home / 5,214,978,600.30-7,822,467,900.45-3,990,538,536.30

Finding the Fourth Proportional to 5,214,978,600.30, 7,822,467,900.45 and 3,990,538,536.30

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Solution

The fourth proportional to 5,214,978,600.30, 7,822,467,900.45 and 3,990,538,536.30 is: 5,985,807,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214,978,600.30 : 7,822,467,900.45 = 3,990,538,536.30 : x
  2. Step 2: Convert to fraction form
    5,214,978,600.30/7,822,467,900.45 = 3,990,538,536.30/x
  3. Step 3: Cross multiply
    5,214,978,600.30x = 7,822,467,900.45 × 3,990,538,536.30
  4. Step 4: Simplify right side
    5,214,978,600.30x = 31,215,859,605,715,476,480
  5. Step 5: Solve for x
    x = 31,215,859,605,715,476,480/5,214,978,600.30
  6. Step 6: Final answer
    x = 5,985,807,804.45

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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.