Home / 168,570,920.70-252,572,945.85-139,660,530.30

Finding the Fourth Proportional to 168,570,920.70, 252,572,945.85 and 139,660,530.30

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Solution

The fourth proportional to 168,570,920.70, 252,572,945.85 and 139,660,530.30 is: 209,255,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,570,920.70 : 252,572,945.85 = 139,660,530.30 : x
  2. Step 2: Convert to fraction form
    168,570,920.70/252,572,945.85 = 139,660,530.30/x
  3. Step 3: Cross multiply
    168,570,920.70x = 252,572,945.85 × 139,660,530.30
  4. Step 4: Simplify right side
    168,570,920.70x = 35,274,471,556,844,188
  5. Step 5: Solve for x
    x = 35,274,471,556,844,188/168,570,920.70
  6. Step 6: Final answer
    x = 209,255,970.19

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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.