Finding the Fourth Proportional to 13,550,813.99, 18,700,174.02 and 7,355,872.84
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Solution
The fourth proportional to 13,550,813.99, 18,700,174.02 and 7,355,872.84 is: 10,151,132.05
Step by Step Solution
- Step 1: Write the proportion equation
13,550,813.99 : 18,700,174.02 = 7,355,872.84 : x - Step 2: Convert to fraction form
13,550,813.99/18,700,174.02 = 7,355,872.84/x - Step 3: Cross multiply
13,550,813.99x = 18,700,174.02 × 7,355,872.84 - Step 4: Simplify right side
13,550,813.99x = 137,556,102,157,825.70 - Step 5: Solve for x
x = 137,556,102,157,825.70/13,550,813.99 - Step 6: Final answer
x = 10,151,132.05
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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.