Home / 280,629,773.96-387,271,593.94-155,190,457.83

Finding the Fourth Proportional to 280,629,773.96, 387,271,593.94 and 155,190,457.83

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Solution

The fourth proportional to 280,629,773.96, 387,271,593.94 and 155,190,457.83 is: 214,164,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,629,773.96 : 387,271,593.94 = 155,190,457.83 : x
  2. Step 2: Convert to fraction form
    280,629,773.96/387,271,593.94 = 155,190,457.83/x
  3. Step 3: Cross multiply
    280,629,773.96x = 387,271,593.94 × 155,190,457.83
  4. Step 4: Simplify right side
    280,629,773.96x = 60,100,855,967,276,608
  5. Step 5: Solve for x
    x = 60,100,855,967,276,608/280,629,773.96
  6. Step 6: Final answer
    x = 214,164,217.57

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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.