Finding the Fourth Proportional to 11,420,336.40, 15,760,641.60 and 6,264,177.72
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Solution
The fourth proportional to 11,420,336.40, 15,760,641.60 and 6,264,177.72 is: 8,644,881.95
Step by Step Solution
- Step 1: Write the proportion equation
11,420,336.40 : 15,760,641.60 = 6,264,177.72 : x - Step 2: Convert to fraction form
11,420,336.40/15,760,641.60 = 6,264,177.72/x - Step 3: Cross multiply
11,420,336.40x = 15,760,641.60 × 6,264,177.72 - Step 4: Simplify right side
11,420,336.40x = 98,727,459,963,625.14 - Step 5: Solve for x
x = 98,727,459,963,625.14/11,420,336.40 - Step 6: Final answer
x = 8,644,881.95
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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.