Finding the Fourth Proportional to 638,904,981.68, 958,463,366.88 and 224,274,221
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Solution
The fourth proportional to 638,904,981.68, 958,463,366.88 and 224,274,221 is: 336,448,503.50
Step by Step Solution
- Step 1: Write the proportion equation
638,904,981.68 : 958,463,366.88 = 224,274,221 : x - Step 2: Convert to fraction form
638,904,981.68/958,463,366.88 = 224,274,221/x - Step 3: Cross multiply
638,904,981.68x = 958,463,366.88 × 224,274,221 - Step 4: Simplify right side
638,904,981.68x = 214,958,624,964,049,184 - Step 5: Solve for x
x = 214,958,624,964,049,184/638,904,981.68 - Step 6: Final answer
x = 336,448,503.50
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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.