Finding the Fourth Proportional to 216,036,307.68, 324,027,127.52 and 68,485,289.84
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Solution
The fourth proportional to 216,036,307.68, 324,027,127.52 and 68,485,289.84 is: 102,719,269.66
Step by Step Solution
- Step 1: Write the proportion equation
216,036,307.68 : 324,027,127.52 = 68,485,289.84 : x - Step 2: Convert to fraction form
216,036,307.68/324,027,127.52 = 68,485,289.84/x - Step 3: Cross multiply
216,036,307.68x = 324,027,127.52 × 68,485,289.84 - Step 4: Simplify right side
216,036,307.68x = 22,191,091,744,125,456 - Step 5: Solve for x
x = 22,191,091,744,125,456/216,036,307.68 - Step 6: Final answer
x = 102,719,269.66
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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.