Finding the Fourth Proportional to 168,206,831.20, 252,310,246.80 and 102,449,864.80
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Solution
The fourth proportional to 168,206,831.20, 252,310,246.80 and 102,449,864.80 is: 153,674,797.20
Step by Step Solution
- Step 1: Write the proportion equation
168,206,831.20 : 252,310,246.80 = 102,449,864.80 : x - Step 2: Convert to fraction form
168,206,831.20/252,310,246.80 = 102,449,864.80/x - Step 3: Cross multiply
168,206,831.20x = 252,310,246.80 × 102,449,864.80 - Step 4: Simplify right side
168,206,831.20x = 25,849,150,672,314,632 - Step 5: Solve for x
x = 25,849,150,672,314,632/168,206,831.20 - Step 6: Final answer
x = 153,674,797.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.