Home / 221,770,538.98-306,030,968.26-121,279,145.59

Finding the Fourth Proportional to 221,770,538.98, 306,030,968.26 and 121,279,145.59

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Solution

The fourth proportional to 221,770,538.98, 306,030,968.26 and 121,279,145.59 is: 167,358,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,770,538.98 : 306,030,968.26 = 121,279,145.59 : x
  2. Step 2: Convert to fraction form
    221,770,538.98/306,030,968.26 = 121,279,145.59/x
  3. Step 3: Cross multiply
    221,770,538.98x = 306,030,968.26 × 121,279,145.59
  4. Step 4: Simplify right side
    221,770,538.98x = 37,115,174,354,653,208
  5. Step 5: Solve for x
    x = 37,115,174,354,653,208/221,770,538.98
  6. Step 6: Final answer
    x = 167,358,453.14

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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.