Home / 386,373,600.90-533,147,070.33-261,198,086.18

Finding the Fourth Proportional to 386,373,600.90, 533,147,070.33 and 261,198,086.18

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Solution

The fourth proportional to 386,373,600.90, 533,147,070.33 and 261,198,086.18 is: 360,420,572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,373,600.90 : 533,147,070.33 = 261,198,086.18 : x
  2. Step 2: Convert to fraction form
    386,373,600.90/533,147,070.33 = 261,198,086.18/x
  3. Step 3: Cross multiply
    386,373,600.90x = 533,147,070.33 × 261,198,086.18
  4. Step 4: Simplify right side
    386,373,600.90x = 139,256,994,420,004,128
  5. Step 5: Solve for x
    x = 139,256,994,420,004,128/386,373,600.90
  6. Step 6: Final answer
    x = 360,420,572.46

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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.