Finding the Fourth Proportional to 168,420,896.70, 252,253,431.45 and 138,187,808.70
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Solution
The fourth proportional to 168,420,896.70, 252,253,431.45 and 138,187,808.70 is: 206,971,638.39
Step by Step Solution
- Step 1: Write the proportion equation
168,420,896.70 : 252,253,431.45 = 138,187,808.70 : x - Step 2: Convert to fraction form
168,420,896.70/252,253,431.45 = 138,187,808.70/x - Step 3: Cross multiply
168,420,896.70x = 252,253,431.45 × 138,187,808.70 - Step 4: Simplify right side
168,420,896.70x = 34,858,348,929,131,160 - Step 5: Solve for x
x = 34,858,348,929,131,160/168,420,896.70 - Step 6: Final answer
x = 206,971,638.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.