Home / 280,160,926.68-419,907,048.90-130,393,856.76

Finding the Fourth Proportional to 280,160,926.68, 419,907,048.90 and 130,393,856.76

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Solution

The fourth proportional to 280,160,926.68, 419,907,048.90 and 130,393,856.76 is: 195,435,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,160,926.68 : 419,907,048.90 = 130,393,856.76 : x
  2. Step 2: Convert to fraction form
    280,160,926.68/419,907,048.90 = 130,393,856.76/x
  3. Step 3: Cross multiply
    280,160,926.68x = 419,907,048.90 × 130,393,856.76
  4. Step 4: Simplify right side
    280,160,926.68x = 54,753,299,586,780,912
  5. Step 5: Solve for x
    x = 54,753,299,586,780,912/280,160,926.68
  6. Step 6: Final answer
    x = 195,435,174.47

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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.