Finding the Fourth Proportional to 445,824,497.40, 668,736,746.10 and 398,207,383.80
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Solution
The fourth proportional to 445,824,497.40, 668,736,746.10 and 398,207,383.80 is: 597,311,075.70
Step by Step Solution
- Step 1: Write the proportion equation
445,824,497.40 : 668,736,746.10 = 398,207,383.80 : x - Step 2: Convert to fraction form
445,824,497.40/668,736,746.10 = 398,207,383.80/x - Step 3: Cross multiply
445,824,497.40x = 668,736,746.10 × 398,207,383.80 - Step 4: Simplify right side
445,824,497.40x = 266,295,910,115,405,856 - Step 5: Solve for x
x = 266,295,910,115,405,856/445,824,497.40 - Step 6: Final answer
x = 597,311,075.70
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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.