Finding the Fourth Proportional to 495,939,542.81, 684,242,467.74 and 281,322,842.75
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Solution
The fourth proportional to 495,939,542.81, 684,242,467.74 and 281,322,842.75 is: 388,138,108.65
Step by Step Solution
- Step 1: Write the proportion equation
495,939,542.81 : 684,242,467.74 = 281,322,842.75 : x - Step 2: Convert to fraction form
495,939,542.81/684,242,467.74 = 281,322,842.75/x - Step 3: Cross multiply
495,939,542.81x = 684,242,467.74 × 281,322,842.75 - Step 4: Simplify right side
495,939,542.81x = 192,493,036,151,470,752 - Step 5: Solve for x
x = 192,493,036,151,470,752/495,939,542.81 - Step 6: Final answer
x = 388,138,108.65
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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.