Finding the Fourth Proportional to 4,253,144,155.20, 6,379,716,232.80 and 1,147,721,815.80
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Solution
The fourth proportional to 4,253,144,155.20, 6,379,716,232.80 and 1,147,721,815.80 is: 1,721,582,723.70
Step by Step Solution
- Step 1: Write the proportion equation
4,253,144,155.20 : 6,379,716,232.80 = 1,147,721,815.80 : x - Step 2: Convert to fraction form
4,253,144,155.20/6,379,716,232.80 = 1,147,721,815.80/x - Step 3: Cross multiply
4,253,144,155.20x = 6,379,716,232.80 × 1,147,721,815.80 - Step 4: Simplify right side
4,253,144,155.20x = 7,322,139,498,997,951,488 - Step 5: Solve for x
x = 7,322,139,498,997,951,488/4,253,144,155.20 - Step 6: Final answer
x = 1,721,582,723.70
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1.5x scale
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.