Home / 385,516,923,173.24-531,452,644,570.54-269,413,212,999.80

Finding the Fourth Proportional to 385,516,923,173.24, 531,452,644,570.54 and 269,413,212,999.80

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Solution

The fourth proportional to 385,516,923,173.24, 531,452,644,570.54 and 269,413,212,999.80 is: 371,398,389,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,516,923,173.24 : 531,452,644,570.54 = 269,413,212,999.80 : x
  2. Step 2: Convert to fraction form
    385,516,923,173.24/531,452,644,570.54 = 269,413,212,999.80/x
  3. Step 3: Cross multiply
    385,516,923,173.24x = 531,452,644,570.54 × 269,413,212,999.80
  4. Step 4: Simplify right side
    385,516,923,173.24x = 143,180,364,530,989,878,214,656
  5. Step 5: Solve for x
    x = 143,180,364,530,989,878,214,656/385,516,923,173.24
  6. Step 6: Final answer
    x = 371,398,389,861.73

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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.