Home / 208,112,160.36-287,171,610.44-115,269,417.66

Finding the Fourth Proportional to 208,112,160.36, 287,171,610.44 and 115,269,417.66

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Solution

The fourth proportional to 208,112,160.36, 287,171,610.44 and 115,269,417.66 is: 159,058,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,112,160.36 : 287,171,610.44 = 115,269,417.66 : x
  2. Step 2: Convert to fraction form
    208,112,160.36/287,171,610.44 = 115,269,417.66/x
  3. Step 3: Cross multiply
    208,112,160.36x = 287,171,610.44 × 115,269,417.66
  4. Step 4: Simplify right side
    208,112,160.36x = 33,102,104,303,326,828
  5. Step 5: Solve for x
    x = 33,102,104,303,326,828/208,112,160.36
  6. Step 6: Final answer
    x = 159,058,962.47

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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.