Finding the Fourth Proportional to 18,216,132.66, 27,331,751.43 and 7,975,706.85
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Solution
The fourth proportional to 18,216,132.66, 27,331,751.43 and 7,975,706.85 is: 11,966,867.02
Step by Step Solution
- Step 1: Write the proportion equation
18,216,132.66 : 27,331,751.43 = 7,975,706.85 : x - Step 2: Convert to fraction form
18,216,132.66/27,331,751.43 = 7,975,706.85/x - Step 3: Cross multiply
18,216,132.66x = 27,331,751.43 × 7,975,706.85 - Step 4: Simplify right side
18,216,132.66x = 217,990,037,102,748.28 - Step 5: Solve for x
x = 217,990,037,102,748.28/18,216,132.66 - Step 6: Final answer
x = 11,966,867.02
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1.5x scale
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.