Finding the Fourth Proportional to 87,660,711.42, 120,975,351.03 and 48,501,853.98
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Solution
The fourth proportional to 87,660,711.42, 120,975,351.03 and 48,501,853.98 is: 66,934,533.34
Step by Step Solution
- Step 1: Write the proportion equation
87,660,711.42 : 120,975,351.03 = 48,501,853.98 : x - Step 2: Convert to fraction form
87,660,711.42/120,975,351.03 = 48,501,853.98/x - Step 3: Cross multiply
87,660,711.42x = 120,975,351.03 × 48,501,853.98 - Step 4: Simplify right side
87,660,711.42x = 5,867,528,810,836,302 - Step 5: Solve for x
x = 5,867,528,810,836,302/87,660,711.42 - Step 6: Final answer
x = 66,934,533.34
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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.