Home / 405,143,018.58-558,926,161.97-271,224,078.97

Finding the Fourth Proportional to 405,143,018.58, 558,926,161.97 and 271,224,078.97

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Solution

The fourth proportional to 405,143,018.58, 558,926,161.97 and 271,224,078.97 is: 374,174,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,143,018.58 : 558,926,161.97 = 271,224,078.97 : x
  2. Step 2: Convert to fraction form
    405,143,018.58/558,926,161.97 = 271,224,078.97/x
  3. Step 3: Cross multiply
    405,143,018.58x = 558,926,161.97 × 271,224,078.97
  4. Step 4: Simplify right side
    405,143,018.58x = 151,594,233,488,399,520
  5. Step 5: Solve for x
    x = 151,594,233,488,399,520/405,143,018.58
  6. Step 6: Final answer
    x = 374,174,616.21

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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.