Finding the Fourth Proportional to 84,227,986.60, 126,436,458.30 and 65,143,349.80
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Solution
The fourth proportional to 84,227,986.60, 126,436,458.30 and 65,143,349.80 is: 97,788,095.89
Step by Step Solution
- Step 1: Write the proportion equation
84,227,986.60 : 126,436,458.30 = 65,143,349.80 : x - Step 2: Convert to fraction form
84,227,986.60/126,436,458.30 = 65,143,349.80/x - Step 3: Cross multiply
84,227,986.60x = 126,436,458.30 × 65,143,349.80 - Step 4: Simplify right side
84,227,986.60x = 8,236,494,430,510,013 - Step 5: Solve for x
x = 8,236,494,430,510,013/84,227,986.60 - Step 6: Final answer
x = 97,788,095.89
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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.