Finding the Fourth Proportional to 946,738,140.80, 1,420,107,211.20 and 533,489,619.20
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Solution
The fourth proportional to 946,738,140.80, 1,420,107,211.20 and 533,489,619.20 is: 800,234,428.80
Step by Step Solution
- Step 1: Write the proportion equation
946,738,140.80 : 1,420,107,211.20 = 533,489,619.20 : x - Step 2: Convert to fraction form
946,738,140.80/1,420,107,211.20 = 533,489,619.20/x - Step 3: Cross multiply
946,738,140.80x = 1,420,107,211.20 × 533,489,619.20 - Step 4: Simplify right side
946,738,140.80x = 757,612,455,326,262,016 - Step 5: Solve for x
x = 757,612,455,326,262,016/946,738,140.80 - Step 6: Final answer
x = 800,234,428.80
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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.