Finding the Fourth Proportional to 51,261,451.42, 70,733,193.15 and 31,133,975.41
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Solution
The fourth proportional to 51,261,451.42, 70,733,193.15 and 31,133,975.41 is: 42,960,264.20
Step by Step Solution
- Step 1: Write the proportion equation
51,261,451.42 : 70,733,193.15 = 31,133,975.41 : x - Step 2: Convert to fraction form
51,261,451.42/70,733,193.15 = 31,133,975.41/x - Step 3: Cross multiply
51,261,451.42x = 70,733,193.15 × 31,133,975.41 - Step 4: Simplify right side
51,261,451.42x = 2,202,205,496,202,880.75 - Step 5: Solve for x
x = 2,202,205,496,202,880.75/51,261,451.42 - Step 6: Final answer
x = 42,960,264.20
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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.