Finding the Fourth Proportional to 4,147,756.21, 6,221,653.98 and 1,269,118.44
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Solution
The fourth proportional to 4,147,756.21, 6,221,653.98 and 1,269,118.44 is: 1,903,683.68
Step by Step Solution
- Step 1: Write the proportion equation
4,147,756.21 : 6,221,653.98 = 1,269,118.44 : x - Step 2: Convert to fraction form
4,147,756.21/6,221,653.98 = 1,269,118.44/x - Step 3: Cross multiply
4,147,756.21x = 6,221,653.98 × 1,269,118.44 - Step 4: Simplify right side
4,147,756.21x = 7,896,015,793,317.39 - Step 5: Solve for x
x = 7,896,015,793,317.39/4,147,756.21 - Step 6: Final answer
x = 1,903,683.68
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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.