Home / 378,779,858.58-522,567,478.71-219,982,949.58

Finding the Fourth Proportional to 378,779,858.58, 522,567,478.71 and 219,982,949.58

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Solution

The fourth proportional to 378,779,858.58, 522,567,478.71 and 219,982,949.58 is: 303,490,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,779,858.58 : 522,567,478.71 = 219,982,949.58 : x
  2. Step 2: Convert to fraction form
    378,779,858.58/522,567,478.71 = 219,982,949.58/x
  3. Step 3: Cross multiply
    378,779,858.58x = 522,567,478.71 × 219,982,949.58
  4. Step 4: Simplify right side
    378,779,858.58x = 114,955,935,321,209,648
  5. Step 5: Solve for x
    x = 114,955,935,321,209,648/378,779,858.58
  6. Step 6: Final answer
    x = 303,490,095.15

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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.