Finding the Fourth Proportional to 163,539,373.36, 225,686,995.92 and 89,199,914.80
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Solution
The fourth proportional to 163,539,373.36, 225,686,995.92 and 89,199,914.80 is: 123,097,333.65
Step by Step Solution
- Step 1: Write the proportion equation
163,539,373.36 : 225,686,995.92 = 89,199,914.80 : x - Step 2: Convert to fraction form
163,539,373.36/225,686,995.92 = 89,199,914.80/x - Step 3: Cross multiply
163,539,373.36x = 225,686,995.92 × 89,199,914.80 - Step 4: Simplify right side
163,539,373.36x = 20,131,260,807,531,944 - Step 5: Solve for x
x = 20,131,260,807,531,944/163,539,373.36 - Step 6: Final answer
x = 123,097,333.65
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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.