Home / 405,575,890.80-559,694,877.48-219,936,856.56

Finding the Fourth Proportional to 405,575,890.80, 559,694,877.48 and 219,936,856.56

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Solution

The fourth proportional to 405,575,890.80, 559,694,877.48 and 219,936,856.56 is: 303,512,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,575,890.80 : 559,694,877.48 = 219,936,856.56 : x
  2. Step 2: Convert to fraction form
    405,575,890.80/559,694,877.48 = 219,936,856.56/x
  3. Step 3: Cross multiply
    405,575,890.80x = 559,694,877.48 × 219,936,856.56
  4. Step 4: Simplify right side
    405,575,890.80x = 123,097,531,985,685,536
  5. Step 5: Solve for x
    x = 123,097,531,985,685,536/405,575,890.80
  6. Step 6: Final answer
    x = 303,512,942.41

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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.