Finding the Fourth Proportional to 138,452,855.24, 191,123,770.76 and 86,267,674.10
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Solution
The fourth proportional to 138,452,855.24, 191,123,770.76 and 86,267,674.10 is: 119,086,046.58
Step by Step Solution
- Step 1: Write the proportion equation
138,452,855.24 : 191,123,770.76 = 86,267,674.10 : x - Step 2: Convert to fraction form
138,452,855.24/191,123,770.76 = 86,267,674.10/x - Step 3: Cross multiply
138,452,855.24x = 191,123,770.76 × 86,267,674.10 - Step 4: Simplify right side
138,452,855.24x = 16,487,803,168,178,728 - Step 5: Solve for x
x = 16,487,803,168,178,728/138,452,855.24 - Step 6: Final answer
x = 119,086,046.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.