Finding the Fourth Proportional to 248,331,412.08, 342,707,920.92 and 138,323,173.68
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Solution
The fourth proportional to 248,331,412.08, 342,707,920.92 and 138,323,173.68 is: 190,891,868.53
Step by Step Solution
- Step 1: Write the proportion equation
248,331,412.08 : 342,707,920.92 = 138,323,173.68 : x - Step 2: Convert to fraction form
248,331,412.08/342,707,920.92 = 138,323,173.68/x - Step 3: Cross multiply
248,331,412.08x = 342,707,920.92 × 138,323,173.68 - Step 4: Simplify right side
248,331,412.08x = 47,404,447,266,928,872 - Step 5: Solve for x
x = 47,404,447,266,928,872/248,331,412.08 - Step 6: Final answer
x = 190,891,868.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.