Finding the Fourth Proportional to 13,311,356.92, 18,369,612.48 and 7,199,770.84
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Solution
The fourth proportional to 13,311,356.92, 18,369,612.48 and 7,199,770.84 is: 9,935,651.27
Step by Step Solution
- Step 1: Write the proportion equation
13,311,356.92 : 18,369,612.48 = 7,199,770.84 : x - Step 2: Convert to fraction form
13,311,356.92/18,369,612.48 = 7,199,770.84/x - Step 3: Cross multiply
13,311,356.92x = 18,369,612.48 × 7,199,770.84 - Step 4: Simplify right side
13,311,356.92x = 132,257,000,275,604.08 - Step 5: Solve for x
x = 132,257,000,275,604.08/13,311,356.92 - Step 6: Final answer
x = 9,935,651.27
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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.