Finding the Fourth Proportional to 4,678,957.80, 7,018,436.70 and 2,553,193.80
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Solution
The fourth proportional to 4,678,957.80, 7,018,436.70 and 2,553,193.80 is: 3,829,790.70
Step by Step Solution
- Step 1: Write the proportion equation
4,678,957.80 : 7,018,436.70 = 2,553,193.80 : x - Step 2: Convert to fraction form
4,678,957.80/7,018,436.70 = 2,553,193.80/x - Step 3: Cross multiply
4,678,957.80x = 7,018,436.70 × 2,553,193.80 - Step 4: Simplify right side
4,678,957.80x = 17,919,429,068,132.46 - Step 5: Solve for x
x = 17,919,429,068,132.46/4,678,957.80 - Step 6: Final answer
x = 3,829,790.70
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1.5x scale
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.