Finding the Fourth Proportional to 87,005,364.94, 120,070,487.19 and 47,850,170.14
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Solution
The fourth proportional to 87,005,364.94, 120,070,487.19 and 47,850,170.14 is: 66,034,930.66
Step by Step Solution
- Step 1: Write the proportion equation
87,005,364.94 : 120,070,487.19 = 47,850,170.14 : x - Step 2: Convert to fraction form
87,005,364.94/120,070,487.19 = 47,850,170.14/x - Step 3: Cross multiply
87,005,364.94x = 120,070,487.19 × 47,850,170.14 - Step 4: Simplify right side
87,005,364.94x = 5,745,393,240,834,190 - Step 5: Solve for x
x = 5,745,393,240,834,190/87,005,364.94 - Step 6: Final answer
x = 66,034,930.66
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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.