Home / 209,930,252.76-289,761,377.25-121,852,625.97

Finding the Fourth Proportional to 209,930,252.76, 289,761,377.25 and 121,852,625.97

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Solution

The fourth proportional to 209,930,252.76, 289,761,377.25 and 121,852,625.97 is: 168,190,073.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,930,252.76 : 289,761,377.25 = 121,852,625.97 : x
  2. Step 2: Convert to fraction form
    209,930,252.76/289,761,377.25 = 121,852,625.97/x
  3. Step 3: Cross multiply
    209,930,252.76x = 289,761,377.25 × 121,852,625.97
  4. Step 4: Simplify right side
    209,930,252.76x = 35,308,184,722,596,316
  5. Step 5: Solve for x
    x = 35,308,184,722,596,316/209,930,252.76
  6. Step 6: Final answer
    x = 168,190,073.89

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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.