Finding the Fourth Proportional to 5,293,786,565.20, 7,940,679,847.80 and 1,363,485,125.20
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Solution
The fourth proportional to 5,293,786,565.20, 7,940,679,847.80 and 1,363,485,125.20 is: 2,045,227,687.80
Step by Step Solution
- Step 1: Write the proportion equation
5,293,786,565.20 : 7,940,679,847.80 = 1,363,485,125.20 : x - Step 2: Convert to fraction form
5,293,786,565.20/7,940,679,847.80 = 1,363,485,125.20/x - Step 3: Cross multiply
5,293,786,565.20x = 7,940,679,847.80 × 1,363,485,125.20 - Step 4: Simplify right side
5,293,786,565.20x = 10,826,998,856,450,701,312 - Step 5: Solve for x
x = 10,826,998,856,450,701,312/5,293,786,565.20 - Step 6: Final answer
x = 2,045,227,687.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.