Finding the Fourth Proportional to 764,437,536.10, 1,146,656,304.15 and 419,257,785.70
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Solution
The fourth proportional to 764,437,536.10, 1,146,656,304.15 and 419,257,785.70 is: 628,886,678.55
Step by Step Solution
- Step 1: Write the proportion equation
764,437,536.10 : 1,146,656,304.15 = 419,257,785.70 : x - Step 2: Convert to fraction form
764,437,536.10/1,146,656,304.15 = 419,257,785.70/x - Step 3: Cross multiply
764,437,536.10x = 1,146,656,304.15 × 419,257,785.70 - Step 4: Simplify right side
764,437,536.10x = 480,744,583,036,874,752 - Step 5: Solve for x
x = 480,744,583,036,874,752/764,437,536.10 - Step 6: Final answer
x = 628,886,678.55
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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.