Finding the Fourth Proportional to 6,129,029.70, 9,193,544.55 and 5,184,245.70
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Solution
The fourth proportional to 6,129,029.70, 9,193,544.55 and 5,184,245.70 is: 7,776,368.55
Step by Step Solution
- Step 1: Write the proportion equation
6,129,029.70 : 9,193,544.55 = 5,184,245.70 : x - Step 2: Convert to fraction form
6,129,029.70/9,193,544.55 = 5,184,245.70/x - Step 3: Cross multiply
6,129,029.70x = 9,193,544.55 × 5,184,245.70 - Step 4: Simplify right side
6,129,029.70x = 47,661,593,801,095.94 - Step 5: Solve for x
x = 47,661,593,801,095.94/6,129,029.70 - Step 6: Final answer
x = 7,776,368.55
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Double scale
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Similar ratio
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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.