Finding the Fourth Proportional to 6,643,147.70, 9,964,721.55 and 6,076,277.30
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Solution
The fourth proportional to 6,643,147.70, 9,964,721.55 and 6,076,277.30 is: 9,114,415.95
Step by Step Solution
- Step 1: Write the proportion equation
6,643,147.70 : 9,964,721.55 = 6,076,277.30 : x - Step 2: Convert to fraction form
6,643,147.70/9,964,721.55 = 6,076,277.30/x - Step 3: Cross multiply
6,643,147.70x = 9,964,721.55 × 6,076,277.30 - Step 4: Simplify right side
6,643,147.70x = 60,548,411,355,085.82 - Step 5: Solve for x
x = 60,548,411,355,085.82/6,643,147.70 - Step 6: Final answer
x = 9,114,415.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.