Finding the Fourth Proportional to 4,147,756.09, 6,221,653.80 and 1,269,118.32
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Solution
The fourth proportional to 4,147,756.09, 6,221,653.80 and 1,269,118.32 is: 1,903,683.50
Step by Step Solution
- Step 1: Write the proportion equation
4,147,756.09 : 6,221,653.80 = 1,269,118.32 : x - Step 2: Convert to fraction form
4,147,756.09/6,221,653.80 = 1,269,118.32/x - Step 3: Cross multiply
4,147,756.09x = 6,221,653.80 × 1,269,118.32 - Step 4: Simplify right side
4,147,756.09x = 7,896,014,811,932.03 - Step 5: Solve for x
x = 7,896,014,811,932.03/4,147,756.09 - Step 6: Final answer
x = 1,903,683.50
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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.