Finding the Fourth Proportional to 93,828,062.68, 129,405,949.66 and 66,042,752.56
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Solution
The fourth proportional to 93,828,062.68, 129,405,949.66 and 66,042,752.56 is: 91,084,957.62
Step by Step Solution
- Step 1: Write the proportion equation
93,828,062.68 : 129,405,949.66 = 66,042,752.56 : x - Step 2: Convert to fraction form
93,828,062.68/129,405,949.66 = 66,042,752.56/x - Step 3: Cross multiply
93,828,062.68x = 129,405,949.66 × 66,042,752.56 - Step 4: Simplify right side
93,828,062.68x = 8,546,325,113,187,196 - Step 5: Solve for x
x = 8,546,325,113,187,196/93,828,062.68 - Step 6: Final answer
x = 91,084,957.62
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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.