Finding the Fourth Proportional to 12,250,993.08, 18,330,317.16 and 7,308,747.70
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Solution
The fourth proportional to 12,250,993.08, 18,330,317.16 and 7,308,747.70 is: 10,935,575.79
Step by Step Solution
- Step 1: Write the proportion equation
12,250,993.08 : 18,330,317.16 = 7,308,747.70 : x - Step 2: Convert to fraction form
12,250,993.08/18,330,317.16 = 7,308,747.70/x - Step 3: Cross multiply
12,250,993.08x = 18,330,317.16 × 7,308,747.70 - Step 4: Simplify right side
12,250,993.08x = 133,971,663,383,420.53 - Step 5: Solve for x
x = 133,971,663,383,420.53/12,250,993.08 - Step 6: Final answer
x = 10,935,575.79
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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.