Finding the Fourth Proportional to 154,867,180.92, 213,719,444.84 and 84,304,831.20
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Solution
The fourth proportional to 154,867,180.92, 213,719,444.84 and 84,304,831.20 is: 116,342,156.00
Step by Step Solution
- Step 1: Write the proportion equation
154,867,180.92 : 213,719,444.84 = 84,304,831.20 : x - Step 2: Convert to fraction form
154,867,180.92/213,719,444.84 = 84,304,831.20/x - Step 3: Cross multiply
154,867,180.92x = 213,719,444.84 × 84,304,831.20 - Step 4: Simplify right side
154,867,180.92x = 18,017,581,721,393,912 - Step 5: Solve for x
x = 18,017,581,721,393,912/154,867,180.92 - Step 6: Final answer
x = 116,342,156.00
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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.