Home / 479,280,173.03-661,356,230.77-278,297,760.47

Finding the Fourth Proportional to 479,280,173.03, 661,356,230.77 and 278,297,760.47

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Solution

The fourth proportional to 479,280,173.03, 661,356,230.77 and 278,297,760.47 is: 384,021,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,280,173.03 : 661,356,230.77 = 278,297,760.47 : x
  2. Step 2: Convert to fraction form
    479,280,173.03/661,356,230.77 = 278,297,760.47/x
  3. Step 3: Cross multiply
    479,280,173.03x = 661,356,230.77 × 278,297,760.47
  4. Step 4: Simplify right side
    479,280,173.03x = 184,053,957,892,989,504
  5. Step 5: Solve for x
    x = 184,053,957,892,989,504/479,280,173.03
  6. Step 6: Final answer
    x = 384,021,639.64

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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.