Finding the Fourth Proportional to 7,209,181.77, 9,948,702.57 and 3,901,476.42
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Solution
The fourth proportional to 7,209,181.77, 9,948,702.57 and 3,901,476.42 is: 5,384,054.63
Step by Step Solution
- Step 1: Write the proportion equation
7,209,181.77 : 9,948,702.57 = 3,901,476.42 : x - Step 2: Convert to fraction form
7,209,181.77/9,948,702.57 = 3,901,476.42/x - Step 3: Cross multiply
7,209,181.77x = 9,948,702.57 × 3,901,476.42 - Step 4: Simplify right side
7,209,181.77x = 38,814,628,486,448.40 - Step 5: Solve for x
x = 38,814,628,486,448.40/7,209,181.77 - Step 6: Final answer
x = 5,384,054.63
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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.