Finding the Fourth Proportional to 77,040,230.70, 115,560,346.05 and 25,905,254.70
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Solution
The fourth proportional to 77,040,230.70, 115,560,346.05 and 25,905,254.70 is: 38,857,882.05
Step by Step Solution
- Step 1: Write the proportion equation
77,040,230.70 : 115,560,346.05 = 25,905,254.70 : x - Step 2: Convert to fraction form
77,040,230.70/115,560,346.05 = 25,905,254.70/x - Step 3: Cross multiply
77,040,230.70x = 115,560,346.05 × 25,905,254.70 - Step 4: Simplify right side
77,040,230.70x = 2,993,620,197,645,389 - Step 5: Solve for x
x = 2,993,620,197,645,389/77,040,230.70 - Step 6: Final answer
x = 38,857,882.05
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Double scale
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Similar ratio
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1.5x scale
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.