Home / 305,093,640.08-421,034,013.68-165,864,933.52

Finding the Fourth Proportional to 305,093,640.08, 421,034,013.68 and 165,864,933.52

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Solution

The fourth proportional to 305,093,640.08, 421,034,013.68 and 165,864,933.52 is: 228,896,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,093,640.08 : 421,034,013.68 = 165,864,933.52 : x
  2. Step 2: Convert to fraction form
    305,093,640.08/421,034,013.68 = 165,864,933.52/x
  3. Step 3: Cross multiply
    305,093,640.08x = 421,034,013.68 × 165,864,933.52
  4. Step 4: Simplify right side
    305,093,640.08x = 69,834,778,688,691,976
  5. Step 5: Solve for x
    x = 69,834,778,688,691,976/305,093,640.08
  6. Step 6: Final answer
    x = 228,896,212.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.