Finding the Fourth Proportional to 4,992,945.49, 6,890,197.33 and 2,787,842.40
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Solution
The fourth proportional to 4,992,945.49, 6,890,197.33 and 2,787,842.40 is: 3,847,184.85
Step by Step Solution
- Step 1: Write the proportion equation
4,992,945.49 : 6,890,197.33 = 2,787,842.40 : x - Step 2: Convert to fraction form
4,992,945.49/6,890,197.33 = 2,787,842.40/x - Step 3: Cross multiply
4,992,945.49x = 6,890,197.33 × 2,787,842.40 - Step 4: Simplify right side
4,992,945.49x = 19,208,784,260,940.79 - Step 5: Solve for x
x = 19,208,784,260,940.79/4,992,945.49 - Step 6: Final answer
x = 3,847,184.85
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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.