Finding the Fourth Proportional to 7,117,158.68, 9,821,725.62 and 3,853,973.57
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Solution
The fourth proportional to 7,117,158.68, 9,821,725.62 and 3,853,973.57 is: 5,318,508.78
Step by Step Solution
- Step 1: Write the proportion equation
7,117,158.68 : 9,821,725.62 = 3,853,973.57 : x - Step 2: Convert to fraction form
7,117,158.68/9,821,725.62 = 3,853,973.57/x - Step 3: Cross multiply
7,117,158.68x = 9,821,725.62 × 3,853,973.57 - Step 4: Simplify right side
7,117,158.68x = 37,852,670,964,636.64 - Step 5: Solve for x
x = 37,852,670,964,636.64/7,117,158.68 - Step 6: Final answer
x = 5,318,508.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.