Finding the Fourth Proportional to 1,185,241,906.80, 1,635,734,273.69 and 656,771,661.99
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Solution
The fourth proportional to 1,185,241,906.80, 1,635,734,273.69 and 656,771,661.99 is: 906,400,551.10
Step by Step Solution
- Step 1: Write the proportion equation
1,185,241,906.80 : 1,635,734,273.69 = 656,771,661.99 : x - Step 2: Convert to fraction form
1,185,241,906.80/1,635,734,273.69 = 656,771,661.99/x - Step 3: Cross multiply
1,185,241,906.80x = 1,635,734,273.69 × 656,771,661.99 - Step 4: Simplify right side
1,185,241,906.80x = 1,074,303,917,507,028,864 - Step 5: Solve for x
x = 1,074,303,917,507,028,864/1,185,241,906.80 - Step 6: Final answer
x = 906,400,551.10
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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.