Finding the Fourth Proportional to 645,293,431.80, 967,940,147.70 and 531,919,351.80
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Solution
The fourth proportional to 645,293,431.80, 967,940,147.70 and 531,919,351.80 is: 797,879,027.70
Step by Step Solution
- Step 1: Write the proportion equation
645,293,431.80 : 967,940,147.70 = 531,919,351.80 : x - Step 2: Convert to fraction form
645,293,431.80/967,940,147.70 = 531,919,351.80/x - Step 3: Cross multiply
645,293,431.80x = 967,940,147.70 × 531,919,351.80 - Step 4: Simplify right side
645,293,431.80x = 514,866,095,945,780,288 - Step 5: Solve for x
x = 514,866,095,945,780,288/645,293,431.80 - Step 6: Final answer
x = 797,879,027.70
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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.