Home / 256,080,719.78-384,120,509.63-197,873,036.81

Finding the Fourth Proportional to 256,080,719.78, 384,120,509.63 and 197,873,036.81

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Solution

The fourth proportional to 256,080,719.78, 384,120,509.63 and 197,873,036.81 is: 296,809,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,080,719.78 : 384,120,509.63 = 197,873,036.81 : x
  2. Step 2: Convert to fraction form
    256,080,719.78/384,120,509.63 = 197,873,036.81/x
  3. Step 3: Cross multiply
    256,080,719.78x = 384,120,509.63 × 197,873,036.81
  4. Step 4: Simplify right side
    256,080,719.78x = 76,007,091,741,492,944
  5. Step 5: Solve for x
    x = 76,007,091,741,492,944/256,080,719.78
  6. Step 6: Final answer
    x = 296,809,114.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.