Finding the Fourth Proportional to 419,904,349.80, 629,856,524.70 and 402,898,237.80
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Solution
The fourth proportional to 419,904,349.80, 629,856,524.70 and 402,898,237.80 is: 604,347,356.70
Step by Step Solution
- Step 1: Write the proportion equation
419,904,349.80 : 629,856,524.70 = 402,898,237.80 : x - Step 2: Convert to fraction form
419,904,349.80/629,856,524.70 = 402,898,237.80/x - Step 3: Cross multiply
419,904,349.80x = 629,856,524.70 × 402,898,237.80 - Step 4: Simplify right side
419,904,349.80x = 253,768,083,868,462,208 - Step 5: Solve for x
x = 253,768,083,868,462,208/419,904,349.80 - Step 6: Final answer
x = 604,347,356.70
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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.