Finding the Fourth Proportional to 6,778,435.74, 10,167,736.23 and 1,986,221.94
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Solution
The fourth proportional to 6,778,435.74, 10,167,736.23 and 1,986,221.94 is: 2,979,357.12
Step by Step Solution
- Step 1: Write the proportion equation
6,778,435.74 : 10,167,736.23 = 1,986,221.94 : x - Step 2: Convert to fraction form
6,778,435.74/10,167,736.23 = 1,986,221.94/x - Step 3: Cross multiply
6,778,435.74x = 10,167,736.23 × 1,986,221.94 - Step 4: Simplify right side
6,778,435.74x = 20,195,380,780,158.89 - Step 5: Solve for x
x = 20,195,380,780,158.89/6,778,435.74 - Step 6: Final answer
x = 2,979,357.12
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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.