Finding the Fourth Proportional to 126,268,831.20, 189,403,246.80 and 83,186,680.80
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Solution
The fourth proportional to 126,268,831.20, 189,403,246.80 and 83,186,680.80 is: 124,780,021.20
Step by Step Solution
- Step 1: Write the proportion equation
126,268,831.20 : 189,403,246.80 = 83,186,680.80 : x - Step 2: Convert to fraction form
126,268,831.20/189,403,246.80 = 83,186,680.80/x - Step 3: Cross multiply
126,268,831.20x = 189,403,246.80 × 83,186,680.80 - Step 4: Simplify right side
126,268,831.20x = 15,755,827,434,035,222 - Step 5: Solve for x
x = 15,755,827,434,035,222/126,268,831.20 - Step 6: Final answer
x = 124,780,021.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.