Home / 722,589,692.81-1,083,929,416.45-205,060,637.21

Finding the Fourth Proportional to 722,589,692.81, 1,083,929,416.45 and 205,060,637.21

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Solution

The fourth proportional to 722,589,692.81, 1,083,929,416.45 and 205,060,637.21 is: 307,603,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,589,692.81 : 1,083,929,416.45 = 205,060,637.21 : x
  2. Step 2: Convert to fraction form
    722,589,692.81/1,083,929,416.45 = 205,060,637.21/x
  3. Step 3: Cross multiply
    722,589,692.81x = 1,083,929,416.45 × 205,060,637.21
  4. Step 4: Simplify right side
    722,589,692.81x = 222,271,256,821,968,160
  5. Step 5: Solve for x
    x = 222,271,256,821,968,160/722,589,692.81
  6. Step 6: Final answer
    x = 307,603,691.33

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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.