Finding the Fourth Proportional to 293,419,411.20, 440,129,116.80 and 207,325,969.20
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Solution
The fourth proportional to 293,419,411.20, 440,129,116.80 and 207,325,969.20 is: 310,988,953.80
Step by Step Solution
- Step 1: Write the proportion equation
293,419,411.20 : 440,129,116.80 = 207,325,969.20 : x - Step 2: Convert to fraction form
293,419,411.20/440,129,116.80 = 207,325,969.20/x - Step 3: Cross multiply
293,419,411.20x = 440,129,116.80 × 207,325,969.20 - Step 4: Simplify right side
293,419,411.20x = 91,250,195,713,700,000 - Step 5: Solve for x
x = 91,250,195,713,700,000/293,419,411.20 - Step 6: Final answer
x = 310,988,953.80
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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.