Finding the Fourth Proportional to 17,815,589,871, 24,585,530,135.67 and 9,787,450,474.05
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Solution
The fourth proportional to 17,815,589,871, 24,585,530,135.67 and 9,787,450,474.05 is: 13,506,690,506.66
Step by Step Solution
- Step 1: Write the proportion equation
17,815,589,871 : 24,585,530,135.67 = 9,787,450,474.05 : x - Step 2: Convert to fraction form
17,815,589,871/24,585,530,135.67 = 9,787,450,474.05/x - Step 3: Cross multiply
17,815,589,871x = 24,585,530,135.67 × 9,787,450,474.05 - Step 4: Simplify right side
17,815,589,871x = 240,629,658,581,133,852,672 - Step 5: Solve for x
x = 240,629,658,581,133,852,672/17,815,589,871 - Step 6: Final answer
x = 13,506,690,506.66
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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.