Home / 279,979,647,485.99-386,367,801,621.81-156,382,590,536.64

Finding the Fourth Proportional to 279,979,647,485.99, 386,367,801,621.81 and 156,382,590,536.64

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Solution

The fourth proportional to 279,979,647,485.99, 386,367,801,621.81 and 156,382,590,536.64 is: 215,805,678,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979,647,485.99 : 386,367,801,621.81 = 156,382,590,536.64 : x
  2. Step 2: Convert to fraction form
    279,979,647,485.99/386,367,801,621.81 = 156,382,590,536.64/x
  3. Step 3: Cross multiply
    279,979,647,485.99x = 386,367,801,621.81 × 156,382,590,536.64
  4. Step 4: Simplify right side
    279,979,647,485.99x = 60,421,197,717,565,274,587,136
  5. Step 5: Solve for x
    x = 60,421,197,717,565,274,587,136/279,979,647,485.99
  6. Step 6: Final answer
    x = 215,805,678,234.48

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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.