Home / 121,383,259.61-167,521,879.31-74,371,531.91

Finding the Fourth Proportional to 121,383,259.61, 167,521,879.31 and 74,371,531.91

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Solution

The fourth proportional to 121,383,259.61, 167,521,879.31 and 74,371,531.91 is: 102,640,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,383,259.61 : 167,521,879.31 = 74,371,531.91 : x
  2. Step 2: Convert to fraction form
    121,383,259.61/167,521,879.31 = 74,371,531.91/x
  3. Step 3: Cross multiply
    121,383,259.61x = 167,521,879.31 × 74,371,531.91
  4. Step 4: Simplify right side
    121,383,259.61x = 12,458,858,791,517,368
  5. Step 5: Solve for x
    x = 12,458,858,791,517,368/121,383,259.61
  6. Step 6: Final answer
    x = 102,640,667.52

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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.