Home / 378,779,860.58-522,567,481.47-219,982,951.58

Finding the Fourth Proportional to 378,779,860.58, 522,567,481.47 and 219,982,951.58

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Solution

The fourth proportional to 378,779,860.58, 522,567,481.47 and 219,982,951.58 is: 303,490,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,779,860.58 : 522,567,481.47 = 219,982,951.58 : x
  2. Step 2: Convert to fraction form
    378,779,860.58/522,567,481.47 = 219,982,951.58/x
  3. Step 3: Cross multiply
    378,779,860.58x = 522,567,481.47 × 219,982,951.58
  4. Step 4: Simplify right side
    378,779,860.58x = 114,955,936,973,497,568
  5. Step 5: Solve for x
    x = 114,955,936,973,497,568/378,779,860.58
  6. Step 6: Final answer
    x = 303,490,097.91

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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.