Finding the Fourth Proportional to 1,906,039,125.13, 2,629,518,074.79 and 1,190,332,149.52
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Solution
The fourth proportional to 1,906,039,125.13, 2,629,518,074.79 and 1,190,332,149.52 is: 1,642,148,821.03
Step by Step Solution
- Step 1: Write the proportion equation
1,906,039,125.13 : 2,629,518,074.79 = 1,190,332,149.52 : x - Step 2: Convert to fraction form
1,906,039,125.13/2,629,518,074.79 = 1,190,332,149.52/x - Step 3: Cross multiply
1,906,039,125.13x = 2,629,518,074.79 × 1,190,332,149.52 - Step 4: Simplify right side
1,906,039,125.13x = 3,129,999,902,166,472,704 - Step 5: Solve for x
x = 3,129,999,902,166,472,704/1,906,039,125.13 - Step 6: Final answer
x = 1,642,148,821.03
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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.