Finding the Fourth Proportional to 121,390,504.58, 167,522,882.20 and 66,386,361.08
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Solution
The fourth proportional to 121,390,504.58, 167,522,882.20 and 66,386,361.08 is: 91,615,358.10
Step by Step Solution
- Step 1: Write the proportion equation
121,390,504.58 : 167,522,882.20 = 66,386,361.08 : x - Step 2: Convert to fraction form
121,390,504.58/167,522,882.20 = 66,386,361.08/x - Step 3: Cross multiply
121,390,504.58x = 167,522,882.20 × 66,386,361.08 - Step 4: Simplify right side
121,390,504.58x = 11,121,234,546,891,504 - Step 5: Solve for x
x = 11,121,234,546,891,504/121,390,504.58 - Step 6: Final answer
x = 91,615,358.10
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.