Finding the Fourth Proportional to 754,024,207.80, 1,131,036,311.70 and 208,765,741.80
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Solution
The fourth proportional to 754,024,207.80, 1,131,036,311.70 and 208,765,741.80 is: 313,148,612.70
Step by Step Solution
- Step 1: Write the proportion equation
754,024,207.80 : 1,131,036,311.70 = 208,765,741.80 : x - Step 2: Convert to fraction form
754,024,207.80/1,131,036,311.70 = 208,765,741.80/x - Step 3: Cross multiply
754,024,207.80x = 1,131,036,311.70 × 208,765,741.80 - Step 4: Simplify right side
754,024,207.80x = 236,121,634,614,786,528 - Step 5: Solve for x
x = 236,121,634,614,786,528/754,024,207.80 - Step 6: Final answer
x = 313,148,612.70
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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.