Home / 405,143,009.53-558,926,151.88-271,224,072.45

Finding the Fourth Proportional to 405,143,009.53, 558,926,151.88 and 271,224,072.45

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Solution

The fourth proportional to 405,143,009.53, 558,926,151.88 and 271,224,072.45 is: 374,174,608.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,143,009.53 : 558,926,151.88 = 271,224,072.45 : x
  2. Step 2: Convert to fraction form
    405,143,009.53/558,926,151.88 = 271,224,072.45/x
  3. Step 3: Cross multiply
    405,143,009.53x = 558,926,151.88 × 271,224,072.45
  4. Step 4: Simplify right side
    405,143,009.53x = 151,594,227,114,638,784
  5. Step 5: Solve for x
    x = 151,594,227,114,638,784/405,143,009.53
  6. Step 6: Final answer
    x = 374,174,608.83

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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.