Finding the Fourth Proportional to 7,180,074.03, 9,908,502.18 and 3,916,901.92
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Solution
The fourth proportional to 7,180,074.03, 9,908,502.18 and 3,916,901.92 is: 5,405,324.66
Step by Step Solution
- Step 1: Write the proportion equation
7,180,074.03 : 9,908,502.18 = 3,916,901.92 : x - Step 2: Convert to fraction form
7,180,074.03/9,908,502.18 = 3,916,901.92/x - Step 3: Cross multiply
7,180,074.03x = 9,908,502.18 × 3,916,901.92 - Step 4: Simplify right side
7,180,074.03x = 38,810,631,213,166.19 - Step 5: Solve for x
x = 38,810,631,213,166.19/7,180,074.03 - Step 6: Final answer
x = 5,405,324.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.