Home / 866,055,372.80-1,299,083,059.20-682,389,363.20

Finding the Fourth Proportional to 866,055,372.80, 1,299,083,059.20 and 682,389,363.20

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Solution

The fourth proportional to 866,055,372.80, 1,299,083,059.20 and 682,389,363.20 is: 1,023,584,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,055,372.80 : 1,299,083,059.20 = 682,389,363.20 : x
  2. Step 2: Convert to fraction form
    866,055,372.80/1,299,083,059.20 = 682,389,363.20/x
  3. Step 3: Cross multiply
    866,055,372.80x = 1,299,083,059.20 × 682,389,363.20
  4. Step 4: Simplify right side
    866,055,372.80x = 886,480,461,511,395,968
  5. Step 5: Solve for x
    x = 886,480,461,511,395,968/866,055,372.80
  6. Step 6: Final answer
    x = 1,023,584,044.80

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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.