Finding the Fourth Proportional to 4,289,388,979.20, 6,434,083,468.80 and 2,656,802,227.20
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Solution
The fourth proportional to 4,289,388,979.20, 6,434,083,468.80 and 2,656,802,227.20 is: 3,985,203,340.80
Step by Step Solution
- Step 1: Write the proportion equation
4,289,388,979.20 : 6,434,083,468.80 = 2,656,802,227.20 : x - Step 2: Convert to fraction form
4,289,388,979.20/6,434,083,468.80 = 2,656,802,227.20/x - Step 3: Cross multiply
4,289,388,979.20x = 6,434,083,468.80 × 2,656,802,227.20 - Step 4: Simplify right side
4,289,388,979.20x = 17,094,087,289,898,541,056 - Step 5: Solve for x
x = 17,094,087,289,898,541,056/4,289,388,979.20 - Step 6: Final answer
x = 3,985,203,340.80
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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.