Finding the Fourth Proportional to 1,620,239,754.70, 2,236,290,562.02 and 985,025,271.70
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Solution
The fourth proportional to 1,620,239,754.70, 2,236,290,562.02 and 985,025,271.70 is: 1,359,553,554.99
Step by Step Solution
- Step 1: Write the proportion equation
1,620,239,754.70 : 2,236,290,562.02 = 985,025,271.70 : x - Step 2: Convert to fraction form
1,620,239,754.70/2,236,290,562.02 = 985,025,271.70/x - Step 3: Cross multiply
1,620,239,754.70x = 2,236,290,562.02 × 985,025,271.70 - Step 4: Simplify right side
1,620,239,754.70x = 2,202,802,718,445,946,880 - Step 5: Solve for x
x = 2,202,802,718,445,946,880/1,620,239,754.70 - Step 6: Final answer
x = 1,359,553,554.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.