Finding the Fourth Proportional to 121,616,111.99, 182,715,193.60 and 77,982,358.88
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Solution
The fourth proportional to 121,616,111.99, 182,715,193.60 and 77,982,358.88 is: 117,160,148.99
Step by Step Solution
- Step 1: Write the proportion equation
121,616,111.99 : 182,715,193.60 = 77,982,358.88 : x - Step 2: Convert to fraction form
121,616,111.99/182,715,193.60 = 77,982,358.88/x - Step 3: Cross multiply
121,616,111.99x = 182,715,193.60 × 77,982,358.88 - Step 4: Simplify right side
121,616,111.99x = 14,248,561,800,405,710 - Step 5: Solve for x
x = 14,248,561,800,405,710/121,616,111.99 - Step 6: Final answer
x = 117,160,148.99
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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.