Home / 168,052,893.90-252,079,340.85-139,355,079.90

Finding the Fourth Proportional to 168,052,893.90, 252,079,340.85 and 139,355,079.90

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Solution

The fourth proportional to 168,052,893.90, 252,079,340.85 and 139,355,079.90 is: 209,032,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,052,893.90 : 252,079,340.85 = 139,355,079.90 : x
  2. Step 2: Convert to fraction form
    168,052,893.90/252,079,340.85 = 139,355,079.90/x
  3. Step 3: Cross multiply
    168,052,893.90x = 252,079,340.85 × 139,355,079.90
  4. Step 4: Simplify right side
    168,052,893.90x = 35,128,536,685,291,084
  5. Step 5: Solve for x
    x = 35,128,536,685,291,084/168,052,893.90
  6. Step 6: Final answer
    x = 209,032,619.85

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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.