Finding the Fourth Proportional to 1,816,661,949.21, 2,506,993,102.67 and 981,286,528.41
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Solution
The fourth proportional to 1,816,661,949.21, 2,506,993,102.67 and 981,286,528.41 is: 1,354,175,200.03
Step by Step Solution
- Step 1: Write the proportion equation
1,816,661,949.21 : 2,506,993,102.67 = 981,286,528.41 : x - Step 2: Convert to fraction form
1,816,661,949.21/2,506,993,102.67 = 981,286,528.41/x - Step 3: Cross multiply
1,816,661,949.21x = 2,506,993,102.67 × 981,286,528.41 - Step 4: Simplify right side
1,816,661,949.21x = 2,460,078,558,461,952,512 - Step 5: Solve for x
x = 2,460,078,558,461,952,512/1,816,661,949.21 - Step 6: Final answer
x = 1,354,175,200.03
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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.