Finding the Fourth Proportional to 1,031,942,815.92, 1,423,993,608.68 and 579,785,382.99
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Solution
The fourth proportional to 1,031,942,815.92, 1,423,993,608.68 and 579,785,382.99 is: 800,054,680.40
Step by Step Solution
- Step 1: Write the proportion equation
1,031,942,815.92 : 1,423,993,608.68 = 579,785,382.99 : x - Step 2: Convert to fraction form
1,031,942,815.92/1,423,993,608.68 = 579,785,382.99/x - Step 3: Cross multiply
1,031,942,815.92x = 1,423,993,608.68 × 579,785,382.99 - Step 4: Simplify right side
1,031,942,815.92x = 825,610,679,780,947,072 - Step 5: Solve for x
x = 825,610,679,780,947,072/1,031,942,815.92 - Step 6: Final answer
x = 800,054,680.40
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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.