Home / 491,733,225.46-678,630,534.30-280,049,007.28

Finding the Fourth Proportional to 491,733,225.46, 678,630,534.30 and 280,049,007.28

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Solution

The fourth proportional to 491,733,225.46, 678,630,534.30 and 280,049,007.28 is: 386,489,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,733,225.46 : 678,630,534.30 = 280,049,007.28 : x
  2. Step 2: Convert to fraction form
    491,733,225.46/678,630,534.30 = 280,049,007.28/x
  3. Step 3: Cross multiply
    491,733,225.46x = 678,630,534.30 × 280,049,007.28
  4. Step 4: Simplify right side
    491,733,225.46x = 190,049,807,440,610,944
  5. Step 5: Solve for x
    x = 190,049,807,440,610,944/491,733,225.46
  6. Step 6: Final answer
    x = 386,489,660.65

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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.