Finding the Fourth Proportional to 216,660,419.84, 298,991,958.90 and 117,541,167.23
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Solution
The fourth proportional to 216,660,419.84, 298,991,958.90 and 117,541,167.23 is: 162,207,125.17
Step by Step Solution
- Step 1: Write the proportion equation
216,660,419.84 : 298,991,958.90 = 117,541,167.23 : x - Step 2: Convert to fraction form
216,660,419.84/298,991,958.90 = 117,541,167.23/x - Step 3: Cross multiply
216,660,419.84x = 298,991,958.90 × 117,541,167.23 - Step 4: Simplify right side
216,660,419.84x = 35,143,863,839,995,224 - Step 5: Solve for x
x = 35,143,863,839,995,224/216,660,419.84 - Step 6: Final answer
x = 162,207,125.17
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1.5x scale
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.