Finding the Fourth Proportional to 5,071,766.85, 6,999,755.99 and 3,138,650.19
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Solution
The fourth proportional to 5,071,766.85, 6,999,755.99 and 3,138,650.19 is: 4,331,781.43
Step by Step Solution
- Step 1: Write the proportion equation
5,071,766.85 : 6,999,755.99 = 3,138,650.19 : x - Step 2: Convert to fraction form
5,071,766.85/6,999,755.99 = 3,138,650.19/x - Step 3: Cross multiply
5,071,766.85x = 6,999,755.99 × 3,138,650.19 - Step 4: Simplify right side
5,071,766.85x = 21,969,785,452,273.89 - Step 5: Solve for x
x = 21,969,785,452,273.89/5,071,766.85 - Step 6: Final answer
x = 4,331,781.43
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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.