Finding the Fourth Proportional to 1,754,485,891.20, 2,631,728,836.80 and 1,478,986,876.80
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Solution
The fourth proportional to 1,754,485,891.20, 2,631,728,836.80 and 1,478,986,876.80 is: 2,218,480,315.20
Step by Step Solution
- Step 1: Write the proportion equation
1,754,485,891.20 : 2,631,728,836.80 = 1,478,986,876.80 : x - Step 2: Convert to fraction form
1,754,485,891.20/2,631,728,836.80 = 1,478,986,876.80/x - Step 3: Cross multiply
1,754,485,891.20x = 2,631,728,836.80 × 1,478,986,876.80 - Step 4: Simplify right side
1,754,485,891.20x = 3,892,292,412,923,329,024 - Step 5: Solve for x
x = 3,892,292,412,923,329,024/1,754,485,891.20 - Step 6: Final answer
x = 2,218,480,315.20
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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.