Finding the Fourth Proportional to 746,500,516.20, 1,119,750,774.30 and 261,763,338.60
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Solution
The fourth proportional to 746,500,516.20, 1,119,750,774.30 and 261,763,338.60 is: 392,645,007.90
Step by Step Solution
- Step 1: Write the proportion equation
746,500,516.20 : 1,119,750,774.30 = 261,763,338.60 : x - Step 2: Convert to fraction form
746,500,516.20/1,119,750,774.30 = 261,763,338.60/x - Step 3: Cross multiply
746,500,516.20x = 1,119,750,774.30 × 261,763,338.60 - Step 4: Simplify right side
746,500,516.20x = 293,109,701,080,703,040 - Step 5: Solve for x
x = 293,109,701,080,703,040/746,500,516.20 - Step 6: Final answer
x = 392,645,007.90
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1.5x scale
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.