Finding the Fourth Proportional to 18,480,157.81, 27,700,689.09 and 6,960,640.75
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Solution
The fourth proportional to 18,480,157.81, 27,700,689.09 and 6,960,640.75 is: 10,433,598.42
Step by Step Solution
- Step 1: Write the proportion equation
18,480,157.81 : 27,700,689.09 = 6,960,640.75 : x - Step 2: Convert to fraction form
18,480,157.81/27,700,689.09 = 6,960,640.75/x - Step 3: Cross multiply
18,480,157.81x = 27,700,689.09 × 6,960,640.75 - Step 4: Simplify right side
18,480,157.81x = 192,814,545,282,934.41 - Step 5: Solve for x
x = 192,814,545,282,934.41/18,480,157.81 - Step 6: Final answer
x = 10,433,598.42
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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.