Finding the Fourth Proportional to 242,637,764.20, 363,956,646.30 and 199,555,613.80
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Solution
The fourth proportional to 242,637,764.20, 363,956,646.30 and 199,555,613.80 is: 299,333,420.70
Step by Step Solution
- Step 1: Write the proportion equation
242,637,764.20 : 363,956,646.30 = 199,555,613.80 : x - Step 2: Convert to fraction form
242,637,764.20/363,956,646.30 = 199,555,613.80/x - Step 3: Cross multiply
242,637,764.20x = 363,956,646.30 × 199,555,613.80 - Step 4: Simplify right side
242,637,764.20x = 72,629,591,948,986,000 - Step 5: Solve for x
x = 72,629,591,948,986,000/242,637,764.20 - Step 6: Final answer
x = 299,333,420.70
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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.