Finding the Fourth Proportional to 419,904,564.80, 629,856,847.20 and 236,238,555.20
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Solution
The fourth proportional to 419,904,564.80, 629,856,847.20 and 236,238,555.20 is: 354,357,832.80
Step by Step Solution
- Step 1: Write the proportion equation
419,904,564.80 : 629,856,847.20 = 236,238,555.20 : x - Step 2: Convert to fraction form
419,904,564.80/629,856,847.20 = 236,238,555.20/x - Step 3: Cross multiply
419,904,564.80x = 629,856,847.20 × 236,238,555.20 - Step 4: Simplify right side
419,904,564.80x = 148,796,471,565,355,168 - Step 5: Solve for x
x = 148,796,471,565,355,168/419,904,564.80 - Step 6: Final answer
x = 354,357,832.80
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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.