Finding the Fourth Proportional to 319,638,334.20, 479,457,501.30 and 115,173,079.80
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Solution
The fourth proportional to 319,638,334.20, 479,457,501.30 and 115,173,079.80 is: 172,759,619.70
Step by Step Solution
- Step 1: Write the proportion equation
319,638,334.20 : 479,457,501.30 = 115,173,079.80 : x - Step 2: Convert to fraction form
319,638,334.20/479,457,501.30 = 115,173,079.80/x - Step 3: Cross multiply
319,638,334.20x = 479,457,501.30 × 115,173,079.80 - Step 4: Simplify right side
319,638,334.20x = 55,220,597,057,933,504 - Step 5: Solve for x
x = 55,220,597,057,933,504/319,638,334.20 - Step 6: Final answer
x = 172,759,619.70
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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.