Finding the Fourth Proportional to 218,268,657.20, 327,402,985.80 and 132,175,215.20
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Solution
The fourth proportional to 218,268,657.20, 327,402,985.80 and 132,175,215.20 is: 198,262,822.80
Step by Step Solution
- Step 1: Write the proportion equation
218,268,657.20 : 327,402,985.80 = 132,175,215.20 : x - Step 2: Convert to fraction form
218,268,657.20/327,402,985.80 = 132,175,215.20/x - Step 3: Cross multiply
218,268,657.20x = 327,402,985.80 × 132,175,215.20 - Step 4: Simplify right side
218,268,657.20x = 43,274,560,105,237,544 - Step 5: Solve for x
x = 43,274,560,105,237,544/218,268,657.20 - Step 6: Final answer
x = 198,262,822.80
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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.