Finding the Fourth Proportional to 1,908,428,472,213.20, 2,862,623,843,544.70 and 874,338,157,696.68
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Solution
The fourth proportional to 1,908,428,472,213.20, 2,862,623,843,544.70 and 874,338,157,696.68 is: 1,311,498,593,730.82
Step by Step Solution
- Step 1: Write the proportion equation
1,908,428,472,213.20 : 2,862,623,843,544.70 = 874,338,157,696.68 : x - Step 2: Convert to fraction form
1,908,428,472,213.20/2,862,623,843,544.70 = 874,338,157,696.68/x - Step 3: Cross multiply
1,908,428,472,213.20x = 2,862,623,843,544.70 × 874,338,157,696.68 - Step 4: Simplify right side
1,908,428,472,213.20x = 2,502,901,257,543,462,646,972,416 - Step 5: Solve for x
x = 2,502,901,257,543,462,646,972,416/1,908,428,472,213.20 - Step 6: Final answer
x = 1,311,498,593,730.82
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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.