Finding the Fourth Proportional to 77,273,402.40, 115,910,103.60 and 57,999,808.80
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Solution
The fourth proportional to 77,273,402.40, 115,910,103.60 and 57,999,808.80 is: 86,999,713.20
Step by Step Solution
- Step 1: Write the proportion equation
77,273,402.40 : 115,910,103.60 = 57,999,808.80 : x - Step 2: Convert to fraction form
77,273,402.40/115,910,103.60 = 57,999,808.80/x - Step 3: Cross multiply
77,273,402.40x = 115,910,103.60 × 57,999,808.80 - Step 4: Simplify right side
77,273,402.40x = 6,722,763,846,788,191 - Step 5: Solve for x
x = 6,722,763,846,788,191/77,273,402.40 - Step 6: Final answer
x = 86,999,713.20
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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.