Finding the Fourth Proportional to 129,043,860.48, 178,080,431.04 and 71,097,108.48
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Solution
The fourth proportional to 129,043,860.48, 178,080,431.04 and 71,097,108.48 is: 98,113,956.58
Step by Step Solution
- Step 1: Write the proportion equation
129,043,860.48 : 178,080,431.04 = 71,097,108.48 : x - Step 2: Convert to fraction form
129,043,860.48/178,080,431.04 = 71,097,108.48/x - Step 3: Cross multiply
129,043,860.48x = 178,080,431.04 × 71,097,108.48 - Step 4: Simplify right side
129,043,860.48x = 12,661,003,723,816,040 - Step 5: Solve for x
x = 12,661,003,723,816,040/129,043,860.48 - Step 6: Final answer
x = 98,113,956.58
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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.