Home / 491,733,182.96-678,630,475.42-280,048,964.76

Finding the Fourth Proportional to 491,733,182.96, 678,630,475.42 and 280,048,964.76

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Solution

The fourth proportional to 491,733,182.96, 678,630,475.42 and 280,048,964.76 is: 386,489,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,733,182.96 : 678,630,475.42 = 280,048,964.76 : x
  2. Step 2: Convert to fraction form
    491,733,182.96/678,630,475.42 = 280,048,964.76/x
  3. Step 3: Cross multiply
    491,733,182.96x = 678,630,475.42 × 280,048,964.76
  4. Step 4: Simplify right side
    491,733,182.96x = 190,049,762,095,957,600
  5. Step 5: Solve for x
    x = 190,049,762,095,957,600/491,733,182.96
  6. Step 6: Final answer
    x = 386,489,601.84

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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.