Finding the Fourth Proportional to 7,339,455.68, 10,128,472.30 and 4,076,269.82
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Solution
The fourth proportional to 7,339,455.68, 10,128,472.30 and 4,076,269.82 is: 5,625,265.38
Step by Step Solution
- Step 1: Write the proportion equation
7,339,455.68 : 10,128,472.30 = 4,076,269.82 : x - Step 2: Convert to fraction form
7,339,455.68/10,128,472.30 = 4,076,269.82/x - Step 3: Cross multiply
7,339,455.68x = 10,128,472.30 × 4,076,269.82 - Step 4: Simplify right side
7,339,455.68x = 41,286,385,959,195.98 - Step 5: Solve for x
x = 41,286,385,959,195.98/7,339,455.68 - Step 6: Final answer
x = 5,625,265.38
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1.5x scale
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.