Finding the Fourth Proportional to 258,049,135.80, 387,073,703.70 and 87,848,047.80
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Solution
The fourth proportional to 258,049,135.80, 387,073,703.70 and 87,848,047.80 is: 131,772,071.70
Step by Step Solution
- Step 1: Write the proportion equation
258,049,135.80 : 387,073,703.70 = 87,848,047.80 : x - Step 2: Convert to fraction form
258,049,135.80/387,073,703.70 = 87,848,047.80/x - Step 3: Cross multiply
258,049,135.80x = 387,073,703.70 × 87,848,047.80 - Step 4: Simplify right side
258,049,135.80x = 34,003,669,224,760,636 - Step 5: Solve for x
x = 34,003,669,224,760,636/258,049,135.80 - Step 6: Final answer
x = 131,772,071.70
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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.