Finding the Fourth Proportional to 212,969,802.06, 319,545,900.98 and 67,415,212.62
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Solution
The fourth proportional to 212,969,802.06, 319,545,900.98 and 67,415,212.62 is: 101,151,687.46
Step by Step Solution
- Step 1: Write the proportion equation
212,969,802.06 : 319,545,900.98 = 67,415,212.62 : x - Step 2: Convert to fraction form
212,969,802.06/319,545,900.98 = 67,415,212.62/x - Step 3: Cross multiply
212,969,802.06x = 319,545,900.98 × 67,415,212.62 - Step 4: Simplify right side
212,969,802.06x = 21,542,254,856,416,168 - Step 5: Solve for x
x = 21,542,254,856,416,168/212,969,802.06 - Step 6: Final answer
x = 101,151,687.46
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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.