Finding the Fourth Proportional to 15,118,112.19, 20,864,766.04 and 8,592,722.56
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Solution
The fourth proportional to 15,118,112.19, 20,864,766.04 and 8,592,722.56 is: 11,858,963.84
Step by Step Solution
- Step 1: Write the proportion equation
15,118,112.19 : 20,864,766.04 = 8,592,722.56 : x - Step 2: Convert to fraction form
15,118,112.19/20,864,766.04 = 8,592,722.56/x - Step 3: Cross multiply
15,118,112.19x = 20,864,766.04 × 8,592,722.56 - Step 4: Simplify right side
15,118,112.19x = 179,285,145,865,629 - Step 5: Solve for x
x = 179,285,145,865,629/15,118,112.19 - Step 6: Final answer
x = 11,858,963.84
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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.