Finding the Fourth Proportional to 319,097,385.80, 440,279,410.38 and 193,646,740.40
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Solution
The fourth proportional to 319,097,385.80, 440,279,410.38 and 193,646,740.40 is: 267,186,998.33
Step by Step Solution
- Step 1: Write the proportion equation
319,097,385.80 : 440,279,410.38 = 193,646,740.40 : x - Step 2: Convert to fraction form
319,097,385.80/440,279,410.38 = 193,646,740.40/x - Step 3: Cross multiply
319,097,385.80x = 440,279,410.38 × 193,646,740.40 - Step 4: Simplify right side
319,097,385.80x = 85,258,672,685,320,928 - Step 5: Solve for x
x = 85,258,672,685,320,928/319,097,385.80 - Step 6: Final answer
x = 267,186,998.33
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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.