Finding the Fourth Proportional to 1,520,423,175.44, 2,098,183,981.93 and 825,062,151.44
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Solution
The fourth proportional to 1,520,423,175.44, 2,098,183,981.93 and 825,062,151.44 is: 1,138,585,768.89
Step by Step Solution
- Step 1: Write the proportion equation
1,520,423,175.44 : 2,098,183,981.93 = 825,062,151.44 : x - Step 2: Convert to fraction form
1,520,423,175.44/2,098,183,981.93 = 825,062,151.44/x - Step 3: Cross multiply
1,520,423,175.44x = 2,098,183,981.93 × 825,062,151.44 - Step 4: Simplify right side
1,520,423,175.44x = 1,731,132,190,235,558,144 - Step 5: Solve for x
x = 1,731,132,190,235,558,144/1,520,423,175.44 - Step 6: Final answer
x = 1,138,585,768.89
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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.