Finding the Fourth Proportional to 7,924,993.10, 11,879,193.66 and 3,316,619.85
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Solution
The fourth proportional to 7,924,993.10, 11,879,193.66 and 3,316,619.85 is: 4,971,457.89
Step by Step Solution
- Step 1: Write the proportion equation
7,924,993.10 : 11,879,193.66 = 3,316,619.85 : x - Step 2: Convert to fraction form
7,924,993.10/11,879,193.66 = 3,316,619.85/x - Step 3: Cross multiply
7,924,993.10x = 11,879,193.66 × 3,316,619.85 - Step 4: Simplify right side
7,924,993.10x = 39,398,769,494,750.16 - Step 5: Solve for x
x = 39,398,769,494,750.16/7,924,993.10 - Step 6: Final answer
x = 4,971,457.89
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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.