Finding the Fourth Proportional to 87,407,135.34, 120,624,701.70 and 47,716,782.42
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Solution
The fourth proportional to 87,407,135.34, 120,624,701.70 and 47,716,782.42 is: 65,850,718.29
Step by Step Solution
- Step 1: Write the proportion equation
87,407,135.34 : 120,624,701.70 = 47,716,782.42 : x - Step 2: Convert to fraction form
87,407,135.34/120,624,701.70 = 47,716,782.42/x - Step 3: Cross multiply
87,407,135.34x = 120,624,701.70 × 47,716,782.42 - Step 4: Simplify right side
87,407,135.34x = 5,755,822,645,496,304 - Step 5: Solve for x
x = 5,755,822,645,496,304/87,407,135.34 - Step 6: Final answer
x = 65,850,718.29
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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.