Home / 305,465,467.38-421,631,173.38-199,634,802.96

Finding the Fourth Proportional to 305,465,467.38, 421,631,173.38 and 199,634,802.96

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Solution

The fourth proportional to 305,465,467.38, 421,631,173.38 and 199,634,802.96 is: 275,554,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,465,467.38 : 421,631,173.38 = 199,634,802.96 : x
  2. Step 2: Convert to fraction form
    305,465,467.38/421,631,173.38 = 199,634,802.96/x
  3. Step 3: Cross multiply
    305,465,467.38x = 421,631,173.38 × 199,634,802.96
  4. Step 4: Simplify right side
    305,465,467.38x = 84,172,256,219,509,904
  5. Step 5: Solve for x
    x = 84,172,256,219,509,904/305,465,467.38
  6. Step 6: Final answer
    x = 275,554,081.26

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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.