Home / 279,979,647,485.74-386,367,801,621.48-156,382,590,536.39

Finding the Fourth Proportional to 279,979,647,485.74, 386,367,801,621.48 and 156,382,590,536.39

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Solution

The fourth proportional to 279,979,647,485.74, 386,367,801,621.48 and 156,382,590,536.39 is: 215,805,678,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979,647,485.74 : 386,367,801,621.48 = 156,382,590,536.39 : x
  2. Step 2: Convert to fraction form
    279,979,647,485.74/386,367,801,621.48 = 156,382,590,536.39/x
  3. Step 3: Cross multiply
    279,979,647,485.74x = 386,367,801,621.48 × 156,382,590,536.39
  4. Step 4: Simplify right side
    279,979,647,485.74x = 60,421,197,717,417,073,049,600
  5. Step 5: Solve for x
    x = 60,421,197,717,417,073,049,600/279,979,647,485.74
  6. Step 6: Final answer
    x = 215,805,678,234.15

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1.5x scale

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.