Finding the Fourth Proportional to 403,543,557.51, 604,825,081.94 and 218,873,124.42
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Solution
The fourth proportional to 403,543,557.51, 604,825,081.94 and 218,873,124.42 is: 328,043,783.50
Step by Step Solution
- Step 1: Write the proportion equation
403,543,557.51 : 604,825,081.94 = 218,873,124.42 : x - Step 2: Convert to fraction form
403,543,557.51/604,825,081.94 = 218,873,124.42/x - Step 3: Cross multiply
403,543,557.51x = 604,825,081.94 × 218,873,124.42 - Step 4: Simplify right side
403,543,557.51x = 132,379,955,410,695,936 - Step 5: Solve for x
x = 132,379,955,410,695,936/403,543,557.51 - Step 6: Final answer
x = 328,043,783.50
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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.