Home / 208,450,176.78-287,662,542.03-115,636,566.54

Finding the Fourth Proportional to 208,450,176.78, 287,662,542.03 and 115,636,566.54

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Solution

The fourth proportional to 208,450,176.78, 287,662,542.03 and 115,636,566.54 is: 159,579,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,450,176.78 : 287,662,542.03 = 115,636,566.54 : x
  2. Step 2: Convert to fraction form
    208,450,176.78/287,662,542.03 = 115,636,566.54/x
  3. Step 3: Cross multiply
    208,450,176.78x = 287,662,542.03 × 115,636,566.54
  4. Step 4: Simplify right side
    208,450,176.78x = 33,264,308,682,517,640
  5. Step 5: Solve for x
    x = 33,264,308,682,517,640/208,450,176.78
  6. Step 6: Final answer
    x = 159,579,181.92

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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.