Finding the Fourth Proportional to 1,167,538,586.04, 1,611,203,376.24 and 638,902,684.08
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Solution
The fourth proportional to 1,167,538,586.04, 1,611,203,376.24 and 638,902,684.08 is: 881,685,773.80
Step by Step Solution
- Step 1: Write the proportion equation
1,167,538,586.04 : 1,611,203,376.24 = 638,902,684.08 : x - Step 2: Convert to fraction form
1,167,538,586.04/1,611,203,376.24 = 638,902,684.08/x - Step 3: Cross multiply
1,167,538,586.04x = 1,611,203,376.24 × 638,902,684.08 - Step 4: Simplify right side
1,167,538,586.04x = 1,029,402,161,678,494,208 - Step 5: Solve for x
x = 1,029,402,161,678,494,208/1,167,538,586.04 - Step 6: Final answer
x = 881,685,773.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.