Finding the Fourth Proportional to 372,542,721.55, 514,085,791.33 and 205,269,621.99
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Solution
The fourth proportional to 372,542,721.55, 514,085,791.33 and 205,269,621.99 is: 283,259,314.84
Step by Step Solution
- Step 1: Write the proportion equation
372,542,721.55 : 514,085,791.33 = 205,269,621.99 : x - Step 2: Convert to fraction form
372,542,721.55/514,085,791.33 = 205,269,621.99/x - Step 3: Cross multiply
372,542,721.55x = 514,085,791.33 × 205,269,621.99 - Step 4: Simplify right side
372,542,721.55x = 105,526,196,056,739,120 - Step 5: Solve for x
x = 105,526,196,056,739,120/372,542,721.55 - Step 6: Final answer
x = 283,259,314.84
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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.