Home / 807,468,879.33-1,211,418,635.72-289,903,803.84

Finding the Fourth Proportional to 807,468,879.33, 1,211,418,635.72 and 289,903,803.84

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Solution

The fourth proportional to 807,468,879.33, 1,211,418,635.72 and 289,903,803.84 is: 434,933,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,468,879.33 : 1,211,418,635.72 = 289,903,803.84 : x
  2. Step 2: Convert to fraction form
    807,468,879.33/1,211,418,635.72 = 289,903,803.84/x
  3. Step 3: Cross multiply
    807,468,879.33x = 1,211,418,635.72 × 289,903,803.84
  4. Step 4: Simplify right side
    807,468,879.33x = 351,194,870,536,441,728
  5. Step 5: Solve for x
    x = 351,194,870,536,441,728/807,468,879.33
  6. Step 6: Final answer
    x = 434,933,010.46

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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.