Finding the Fourth Proportional to 129,807,924.98, 179,127,839.68 and 71,059,224.90
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Solution
The fourth proportional to 129,807,924.98, 179,127,839.68 and 71,059,224.90 is: 98,057,845.45
Step by Step Solution
- Step 1: Write the proportion equation
129,807,924.98 : 179,127,839.68 = 71,059,224.90 : x - Step 2: Convert to fraction form
129,807,924.98/179,127,839.68 = 71,059,224.90/x - Step 3: Cross multiply
129,807,924.98x = 179,127,839.68 × 71,059,224.90 - Step 4: Simplify right side
129,807,924.98x = 12,728,685,445,672,266 - Step 5: Solve for x
x = 12,728,685,445,672,266/129,807,924.98 - Step 6: Final answer
x = 98,057,845.45
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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.