Finding the Fourth Proportional to 1,664,098,307.13, 2,296,527,851.24 and 921,542,369.88
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Solution
The fourth proportional to 1,664,098,307.13, 2,296,527,851.24 and 921,542,369.88 is: 1,271,768,446.28
Step by Step Solution
- Step 1: Write the proportion equation
1,664,098,307.13 : 2,296,527,851.24 = 921,542,369.88 : x - Step 2: Convert to fraction form
1,664,098,307.13/2,296,527,851.24 = 921,542,369.88/x - Step 3: Cross multiply
1,664,098,307.13x = 2,296,527,851.24 × 921,542,369.88 - Step 4: Simplify right side
1,664,098,307.13x = 2,116,347,718,511,043,584 - Step 5: Solve for x
x = 2,116,347,718,511,043,584/1,664,098,307.13 - Step 6: Final answer
x = 1,271,768,446.28
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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.