Finding the Fourth Proportional to 5,590,438.80, 8,385,658.20 and 5,540,672.40
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Solution
The fourth proportional to 5,590,438.80, 8,385,658.20 and 5,540,672.40 is: 8,311,008.60
Step by Step Solution
- Step 1: Write the proportion equation
5,590,438.80 : 8,385,658.20 = 5,540,672.40 : x - Step 2: Convert to fraction form
5,590,438.80/8,385,658.20 = 5,540,672.40/x - Step 3: Cross multiply
5,590,438.80x = 8,385,658.20 × 5,540,672.40 - Step 4: Simplify right side
5,590,438.80x = 46,462,184,944,573.69 - Step 5: Solve for x
x = 46,462,184,944,573.69/5,590,438.80 - Step 6: Final answer
x = 8,311,008.60
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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.