Home / 840,822,800.58-1,261,229,613.03-342,831,361.41

Finding the Fourth Proportional to 840,822,800.58, 1,261,229,613.03 and 342,831,361.41

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Solution

The fourth proportional to 840,822,800.58, 1,261,229,613.03 and 342,831,361.41 is: 514,245,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,822,800.58 : 1,261,229,613.03 = 342,831,361.41 : x
  2. Step 2: Convert to fraction form
    840,822,800.58/1,261,229,613.03 = 342,831,361.41/x
  3. Step 3: Cross multiply
    840,822,800.58x = 1,261,229,613.03 × 342,831,361.41
  4. Step 4: Simplify right side
    840,822,800.58x = 432,389,065,285,682,368
  5. Step 5: Solve for x
    x = 432,389,065,285,682,368/840,822,800.58
  6. Step 6: Final answer
    x = 514,245,171.50

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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.