Finding the Fourth Proportional to 2,128,557,717.20, 3,192,836,575.80 and 1,543,547,464.40
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Solution
The fourth proportional to 2,128,557,717.20, 3,192,836,575.80 and 1,543,547,464.40 is: 2,315,321,196.60
Step by Step Solution
- Step 1: Write the proportion equation
2,128,557,717.20 : 3,192,836,575.80 = 1,543,547,464.40 : x - Step 2: Convert to fraction form
2,128,557,717.20/3,192,836,575.80 = 1,543,547,464.40/x - Step 3: Cross multiply
2,128,557,717.20x = 3,192,836,575.80 × 1,543,547,464.40 - Step 4: Simplify right side
2,128,557,717.20x = 4,928,294,800,819,668,992 - Step 5: Solve for x
x = 4,928,294,800,819,668,992/2,128,557,717.20 - Step 6: Final answer
x = 2,315,321,196.60
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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.