Home / 405,112,720.35-559,056,121.34-219,473,736.03

Finding the Fourth Proportional to 405,112,720.35, 559,056,121.34 and 219,473,736.03

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Solution

The fourth proportional to 405,112,720.35, 559,056,121.34 and 219,473,736.03 is: 302,874,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,112,720.35 : 559,056,121.34 = 219,473,736.03 : x
  2. Step 2: Convert to fraction form
    405,112,720.35/559,056,121.34 = 219,473,736.03/x
  3. Step 3: Cross multiply
    405,112,720.35x = 559,056,121.34 × 219,473,736.03
  4. Step 4: Simplify right side
    405,112,720.35x = 122,698,135,600,930,816
  5. Step 5: Solve for x
    x = 122,698,135,600,930,816/405,112,720.35
  6. Step 6: Final answer
    x = 302,874,063.04

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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.