Finding the Fourth Proportional to 879,433,343.60, 1,320,451,717.80 and 492,029,913.20
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Solution
The fourth proportional to 879,433,343.60, 1,320,451,717.80 and 492,029,913.20 is: 738,773,152.99
Step by Step Solution
- Step 1: Write the proportion equation
879,433,343.60 : 1,320,451,717.80 = 492,029,913.20 : x - Step 2: Convert to fraction form
879,433,343.60/1,320,451,717.80 = 492,029,913.20/x - Step 3: Cross multiply
879,433,343.60x = 1,320,451,717.80 × 492,029,913.20 - Step 4: Simplify right side
879,433,343.60x = 649,701,744,093,924,864 - Step 5: Solve for x
x = 649,701,744,093,924,864/879,433,343.60 - Step 6: Final answer
x = 738,773,152.99
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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.