Finding the Fourth Proportional to 318,104,987.80, 477,157,481.70 and 165,049,979.80
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Solution
The fourth proportional to 318,104,987.80, 477,157,481.70 and 165,049,979.80 is: 247,574,969.70
Step by Step Solution
- Step 1: Write the proportion equation
318,104,987.80 : 477,157,481.70 = 165,049,979.80 : x - Step 2: Convert to fraction form
318,104,987.80/477,157,481.70 = 165,049,979.80/x - Step 3: Cross multiply
318,104,987.80x = 477,157,481.70 × 165,049,979.80 - Step 4: Simplify right side
318,104,987.80x = 78,754,832,716,003,872 - Step 5: Solve for x
x = 78,754,832,716,003,872/318,104,987.80 - Step 6: Final answer
x = 247,574,969.70
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1.5x scale
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.