Finding the Fourth Proportional to 128,606,494,053.06, 177,477,108,929.61 and 71,512,578,721.62
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Solution
The fourth proportional to 128,606,494,053.06, 177,477,108,929.61 and 71,512,578,721.62 is: 98,687,440,452.10
Step by Step Solution
- Step 1: Write the proportion equation
128,606,494,053.06 : 177,477,108,929.61 = 71,512,578,721.62 : x - Step 2: Convert to fraction form
128,606,494,053.06/177,477,108,929.61 = 71,512,578,721.62/x - Step 3: Cross multiply
128,606,494,053.06x = 177,477,108,929.61 × 71,512,578,721.62 - Step 4: Simplify right side
128,606,494,053.06x = 12,691,845,723,614,261,280,768 - Step 5: Solve for x
x = 12,691,845,723,614,261,280,768/128,606,494,053.06 - Step 6: Final answer
x = 98,687,440,452.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.