Finding the Fourth Proportional to 6,511,990.60, 9,767,985.90 and 6,235,553.80
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Solution
The fourth proportional to 6,511,990.60, 9,767,985.90 and 6,235,553.80 is: 9,353,330.70
Step by Step Solution
- Step 1: Write the proportion equation
6,511,990.60 : 9,767,985.90 = 6,235,553.80 : x - Step 2: Convert to fraction form
6,511,990.60/9,767,985.90 = 6,235,553.80/x - Step 3: Cross multiply
6,511,990.60x = 9,767,985.90 × 6,235,553.80 - Step 4: Simplify right side
6,511,990.60x = 60,908,801,597,091.42 - Step 5: Solve for x
x = 60,908,801,597,091.42/6,511,990.60 - Step 6: Final answer
x = 9,353,330.70
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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.