Finding the Fourth Proportional to 3,911,232,912.60, 5,866,849,368.90 and 2,992,902,864.60
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Solution
The fourth proportional to 3,911,232,912.60, 5,866,849,368.90 and 2,992,902,864.60 is: 4,489,354,296.90
Step by Step Solution
- Step 1: Write the proportion equation
3,911,232,912.60 : 5,866,849,368.90 = 2,992,902,864.60 : x - Step 2: Convert to fraction form
3,911,232,912.60/5,866,849,368.90 = 2,992,902,864.60/x - Step 3: Cross multiply
3,911,232,912.60x = 5,866,849,368.90 × 2,992,902,864.60 - Step 4: Simplify right side
3,911,232,912.60x = 17,558,910,282,357,510,144 - Step 5: Solve for x
x = 17,558,910,282,357,510,144/3,911,232,912.60 - Step 6: Final answer
x = 4,489,354,296.90
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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.