Finding the Fourth Proportional to 542,284,982.52, 748,435,078.56 and 330,714,556.08
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Solution
The fourth proportional to 542,284,982.52, 748,435,078.56 and 330,714,556.08 is: 456,435,975.07
Step by Step Solution
- Step 1: Write the proportion equation
542,284,982.52 : 748,435,078.56 = 330,714,556.08 : x - Step 2: Convert to fraction form
542,284,982.52/748,435,078.56 = 330,714,556.08/x - Step 3: Cross multiply
542,284,982.52x = 748,435,078.56 × 330,714,556.08 - Step 4: Simplify right side
542,284,982.52x = 247,518,374,760,670,304 - Step 5: Solve for x
x = 247,518,374,760,670,304/542,284,982.52 - Step 6: Final answer
x = 456,435,975.07
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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.