Home / 168,052,961.40-252,079,442.10-139,355,147.40

Finding the Fourth Proportional to 168,052,961.40, 252,079,442.10 and 139,355,147.40

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Solution

The fourth proportional to 168,052,961.40, 252,079,442.10 and 139,355,147.40 is: 209,032,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,052,961.40 : 252,079,442.10 = 139,355,147.40 : x
  2. Step 2: Convert to fraction form
    168,052,961.40/252,079,442.10 = 139,355,147.40/x
  3. Step 3: Cross multiply
    168,052,961.40x = 252,079,442.10 × 139,355,147.40
  4. Step 4: Simplify right side
    168,052,961.40x = 35,128,567,810,355,268
  5. Step 5: Solve for x
    x = 35,128,567,810,355,268/168,052,961.40
  6. Step 6: Final answer
    x = 209,032,721.10

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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.