Home / 279,907,008.66-386,348,509.89-162,470,172.96

Finding the Fourth Proportional to 279,907,008.66, 386,348,509.89 and 162,470,172.96

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Solution

The fourth proportional to 279,907,008.66, 386,348,509.89 and 162,470,172.96 is: 224,253,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,907,008.66 : 386,348,509.89 = 162,470,172.96 : x
  2. Step 2: Convert to fraction form
    279,907,008.66/386,348,509.89 = 162,470,172.96/x
  3. Step 3: Cross multiply
    279,907,008.66x = 386,348,509.89 × 162,470,172.96
  4. Step 4: Simplify right side
    279,907,008.66x = 62,770,109,224,666,568
  5. Step 5: Solve for x
    x = 62,770,109,224,666,568/279,907,008.66
  6. Step 6: Final answer
    x = 224,253,438.76

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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.