Home / 208,182,420.96-287,293,441.32-115,364,478.48

Finding the Fourth Proportional to 208,182,420.96, 287,293,441.32 and 115,364,478.48

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Solution

The fourth proportional to 208,182,420.96, 287,293,441.32 and 115,364,478.48 is: 159,203,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,182,420.96 : 287,293,441.32 = 115,364,478.48 : x
  2. Step 2: Convert to fraction form
    208,182,420.96/287,293,441.32 = 115,364,478.48/x
  3. Step 3: Cross multiply
    208,182,420.96x = 287,293,441.32 × 115,364,478.48
  4. Step 4: Simplify right side
    208,182,420.96x = 33,143,458,028,606,284
  5. Step 5: Solve for x
    x = 33,143,458,028,606,284/208,182,420.96
  6. Step 6: Final answer
    x = 159,203,922.58

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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.