Finding the Fourth Proportional to 5,137,986.08, 7,090,115.95 and 2,814,414.08
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Solution
The fourth proportional to 5,137,986.08, 7,090,115.95 and 2,814,414.08 is: 3,883,724.45
Step by Step Solution
- Step 1: Write the proportion equation
5,137,986.08 : 7,090,115.95 = 2,814,414.08 : x - Step 2: Convert to fraction form
5,137,986.08/7,090,115.95 = 2,814,414.08/x - Step 3: Cross multiply
5,137,986.08x = 7,090,115.95 × 2,814,414.08 - Step 4: Simplify right side
5,137,986.08x = 19,954,522,130,689.88 - Step 5: Solve for x
x = 19,954,522,130,689.88/5,137,986.08 - Step 6: Final answer
x = 3,883,724.45
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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.