Finding the Fourth Proportional to 434,497,740.80, 651,746,611.20 and 378,377,571.20
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Solution
The fourth proportional to 434,497,740.80, 651,746,611.20 and 378,377,571.20 is: 567,566,356.80
Step by Step Solution
- Step 1: Write the proportion equation
434,497,740.80 : 651,746,611.20 = 378,377,571.20 : x - Step 2: Convert to fraction form
434,497,740.80/651,746,611.20 = 378,377,571.20/x - Step 3: Cross multiply
434,497,740.80x = 651,746,611.20 × 378,377,571.20 - Step 4: Simplify right side
434,497,740.80x = 246,606,299,783,686,720 - Step 5: Solve for x
x = 246,606,299,783,686,720/434,497,740.80 - Step 6: Final answer
x = 567,566,356.80
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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.