Finding the Fourth Proportional to 135,494,419.80, 186,982,299.06 and 76,757,084.85
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Solution
The fourth proportional to 135,494,419.80, 186,982,299.06 and 76,757,084.85 is: 105,924,776.94
Step by Step Solution
- Step 1: Write the proportion equation
135,494,419.80 : 186,982,299.06 = 76,757,084.85 : x - Step 2: Convert to fraction form
135,494,419.80/186,982,299.06 = 76,757,084.85/x - Step 3: Cross multiply
135,494,419.80x = 186,982,299.06 × 76,757,084.85 - Step 4: Simplify right side
135,494,419.80x = 14,352,216,194,396,494 - Step 5: Solve for x
x = 14,352,216,194,396,494/135,494,419.80 - Step 6: Final answer
x = 105,924,776.94
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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.