Finding the Fourth Proportional to 13,306,674.18, 18,362,444.12 and 7,425,847.15
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Solution
The fourth proportional to 13,306,674.18, 18,362,444.12 and 7,425,847.15 is: 10,247,241.46
Step by Step Solution
- Step 1: Write the proportion equation
13,306,674.18 : 18,362,444.12 = 7,425,847.15 : x - Step 2: Convert to fraction form
13,306,674.18/18,362,444.12 = 7,425,847.15/x - Step 3: Cross multiply
13,306,674.18x = 18,362,444.12 × 7,425,847.15 - Step 4: Simplify right side
13,306,674.18x = 136,356,703,311,110.73 - Step 5: Solve for x
x = 136,356,703,311,110.73/13,306,674.18 - Step 6: Final answer
x = 10,247,241.46
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1.5x scale
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.