Home / 653,212,914.80-901,432,244.21-355,857,600.47

Finding the Fourth Proportional to 653,212,914.80, 901,432,244.21 and 355,857,600.47

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Solution

The fourth proportional to 653,212,914.80, 901,432,244.21 and 355,857,600.47 is: 491,082,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,212,914.80 : 901,432,244.21 = 355,857,600.47 : x
  2. Step 2: Convert to fraction form
    653,212,914.80/901,432,244.21 = 355,857,600.47/x
  3. Step 3: Cross multiply
    653,212,914.80x = 901,432,244.21 × 355,857,600.47
  4. Step 4: Simplify right side
    653,212,914.80x = 320,781,515,404,571,200
  5. Step 5: Solve for x
    x = 320,781,515,404,571,200/653,212,914.80
  6. Step 6: Final answer
    x = 491,082,628.86

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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.