Finding the Fourth Proportional to 129,346,497.40, 194,019,746.10 and 88,531,828.60
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Solution
The fourth proportional to 129,346,497.40, 194,019,746.10 and 88,531,828.60 is: 132,797,742.90
Step by Step Solution
- Step 1: Write the proportion equation
129,346,497.40 : 194,019,746.10 = 88,531,828.60 : x - Step 2: Convert to fraction form
129,346,497.40/194,019,746.10 = 88,531,828.60/x - Step 3: Cross multiply
129,346,497.40x = 194,019,746.10 × 88,531,828.60 - Step 4: Simplify right side
129,346,497.40x = 17,176,922,906,740,716 - Step 5: Solve for x
x = 17,176,922,906,740,716/129,346,497.40 - Step 6: Final answer
x = 132,797,742.90
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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.