Finding the Fourth Proportional to 5,117,207.40, 7,675,811.10 and 1,330,690.28
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Solution
The fourth proportional to 5,117,207.40, 7,675,811.10 and 1,330,690.28 is: 1,996,035.41
Step by Step Solution
- Step 1: Write the proportion equation
5,117,207.40 : 7,675,811.10 = 1,330,690.28 : x - Step 2: Convert to fraction form
5,117,207.40/7,675,811.10 = 1,330,690.28/x - Step 3: Cross multiply
5,117,207.40x = 7,675,811.10 × 1,330,690.28 - Step 4: Simplify right side
5,117,207.40x = 10,214,127,183,507.05 - Step 5: Solve for x
x = 10,214,127,183,507.05/5,117,207.40 - Step 6: Final answer
x = 1,996,035.41
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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.