Finding the Fourth Proportional to 643,387,210.26, 964,640,232.70 and 327,642,048.44
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Solution
The fourth proportional to 643,387,210.26, 964,640,232.70 and 327,642,048.44 is: 491,238,707.91
Step by Step Solution
- Step 1: Write the proportion equation
643,387,210.26 : 964,640,232.70 = 327,642,048.44 : x - Step 2: Convert to fraction form
643,387,210.26/964,640,232.70 = 327,642,048.44/x - Step 3: Cross multiply
643,387,210.26x = 964,640,232.70 × 327,642,048.44 - Step 4: Simplify right side
643,387,210.26x = 316,056,701,851,058,752 - Step 5: Solve for x
x = 316,056,701,851,058,752/643,387,210.26 - Step 6: Final answer
x = 491,238,707.91
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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.