Finding the Fourth Proportional to 235,198,449.04, 352,878,556.92 and 138,235,280.08
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Solution
The fourth proportional to 235,198,449.04, 352,878,556.92 and 138,235,280.08 is: 207,400,458.42
Step by Step Solution
- Step 1: Write the proportion equation
235,198,449.04 : 352,878,556.92 = 138,235,280.08 : x - Step 2: Convert to fraction form
235,198,449.04/352,878,556.92 = 138,235,280.08/x - Step 3: Cross multiply
235,198,449.04x = 352,878,556.92 × 138,235,280.08 - Step 4: Simplify right side
235,198,449.04x = 48,780,266,150,062,432 - Step 5: Solve for x
x = 48,780,266,150,062,432/235,198,449.04 - Step 6: Final answer
x = 207,400,458.42
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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.