Finding the Fourth Proportional to 220,474,989.81, 304,253,071.43 and 121,353,617.97
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Solution
The fourth proportional to 220,474,989.81, 304,253,071.43 and 121,353,617.97 is: 167,466,663.80
Step by Step Solution
- Step 1: Write the proportion equation
220,474,989.81 : 304,253,071.43 = 121,353,617.97 : x - Step 2: Convert to fraction form
220,474,989.81/304,253,071.43 = 121,353,617.97/x - Step 3: Cross multiply
220,474,989.81x = 304,253,071.43 × 121,353,617.97 - Step 4: Simplify right side
220,474,989.81x = 36,922,210,995,908,576 - Step 5: Solve for x
x = 36,922,210,995,908,576/220,474,989.81 - Step 6: Final answer
x = 167,466,663.80
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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.