Finding the Fourth Proportional to 5,281,817.72, 7,285,929.62 and 3,076,420.62
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Solution
The fourth proportional to 5,281,817.72, 7,285,929.62 and 3,076,420.62 is: 4,243,725.42
Step by Step Solution
- Step 1: Write the proportion equation
5,281,817.72 : 7,285,929.62 = 3,076,420.62 : x - Step 2: Convert to fraction form
5,281,817.72/7,285,929.62 = 3,076,420.62/x - Step 3: Cross multiply
5,281,817.72x = 7,285,929.62 × 3,076,420.62 - Step 4: Simplify right side
5,281,817.72x = 22,414,584,118,836.77 - Step 5: Solve for x
x = 22,414,584,118,836.77/5,281,817.72 - Step 6: Final answer
x = 4,243,725.42
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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.