Finding the Fourth Proportional to 5,368,006.40, 7,408,052.72 and 3,076,609.28
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Solution
The fourth proportional to 5,368,006.40, 7,408,052.72 and 3,076,609.28 is: 4,245,837.66
Step by Step Solution
- Step 1: Write the proportion equation
5,368,006.40 : 7,408,052.72 = 3,076,609.28 : x - Step 2: Convert to fraction form
5,368,006.40/7,408,052.72 = 3,076,609.28/x - Step 3: Cross multiply
5,368,006.40x = 7,408,052.72 × 3,076,609.28 - Step 4: Simplify right side
5,368,006.40x = 22,791,683,745,081.24 - Step 5: Solve for x
x = 22,791,683,745,081.24/5,368,006.40 - Step 6: Final answer
x = 4,245,837.66
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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.