Finding the Fourth Proportional to 129,452,239.38, 194,177,030.46 and 74,830,069.10
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Solution
The fourth proportional to 129,452,239.38, 194,177,030.46 and 74,830,069.10 is: 112,244,335.64
Step by Step Solution
- Step 1: Write the proportion equation
129,452,239.38 : 194,177,030.46 = 74,830,069.10 : x - Step 2: Convert to fraction form
129,452,239.38/194,177,030.46 = 74,830,069.10/x - Step 3: Cross multiply
129,452,239.38x = 194,177,030.46 × 74,830,069.10 - Step 4: Simplify right side
129,452,239.38x = 14,530,280,606,954,604 - Step 5: Solve for x
x = 14,530,280,606,954,604/129,452,239.38 - Step 6: Final answer
x = 112,244,335.64
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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.