Finding the Fourth Proportional to 1,147,596,126.75, 1,721,388,412.07 and 448,159,288.18
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Solution
The fourth proportional to 1,147,596,126.75, 1,721,388,412.07 and 448,159,288.18 is: 672,236,675.82
Step by Step Solution
- Step 1: Write the proportion equation
1,147,596,126.75 : 1,721,388,412.07 = 448,159,288.18 : x - Step 2: Convert to fraction form
1,147,596,126.75/1,721,388,412.07 = 448,159,288.18/x - Step 3: Cross multiply
1,147,596,126.75x = 1,721,388,412.07 × 448,159,288.18 - Step 4: Simplify right side
1,147,596,126.75x = 771,456,205,434,591,744 - Step 5: Solve for x
x = 771,456,205,434,591,744/1,147,596,126.75 - Step 6: Final answer
x = 672,236,675.82
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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.