Finding the Fourth Proportional to 877,515,517,458.09, 1,210,981,231,345.80 and 486,889,154,137.17
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Solution
The fourth proportional to 877,515,517,458.09, 1,210,981,231,345.80 and 486,889,154,137.17 is: 671,912,479,808.78
Step by Step Solution
- Step 1: Write the proportion equation
877,515,517,458.09 : 1,210,981,231,345.80 = 486,889,154,137.17 : x - Step 2: Convert to fraction form
877,515,517,458.09/1,210,981,231,345.80 = 486,889,154,137.17/x - Step 3: Cross multiply
877,515,517,458.09x = 1,210,981,231,345.80 × 486,889,154,137.17 - Step 4: Simplify right side
877,515,517,458.09x = 589,613,627,405,945,163,218,944 - Step 5: Solve for x
x = 589,613,627,405,945,163,218,944/877,515,517,458.09 - Step 6: Final answer
x = 671,912,479,808.78
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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.