Finding the Fourth Proportional to 5,107,673.16, 7,048,643.49 and 2,815,915.86
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Solution
The fourth proportional to 5,107,673.16, 7,048,643.49 and 2,815,915.86 is: 3,885,993.95
Step by Step Solution
- Step 1: Write the proportion equation
5,107,673.16 : 7,048,643.49 = 2,815,915.86 : x - Step 2: Convert to fraction form
5,107,673.16/7,048,643.49 = 2,815,915.86/x - Step 3: Cross multiply
5,107,673.16x = 7,048,643.49 × 2,815,915.86 - Step 4: Simplify right side
5,107,673.16x = 19,848,386,994,976.75 - Step 5: Solve for x
x = 19,848,386,994,976.75/5,107,673.16 - Step 6: Final answer
x = 3,885,993.95
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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.