Finding the Fourth Proportional to 516,917,928.96, 775,604,472.93 and 271,215,316.80
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Solution
The fourth proportional to 516,917,928.96, 775,604,472.93 and 271,215,316.80 is: 406,942,381.09
Step by Step Solution
- Step 1: Write the proportion equation
516,917,928.96 : 775,604,472.93 = 271,215,316.80 : x - Step 2: Convert to fraction form
516,917,928.96/775,604,472.93 = 271,215,316.80/x - Step 3: Cross multiply
516,917,928.96x = 775,604,472.93 × 271,215,316.80 - Step 4: Simplify right side
516,917,928.96x = 210,355,812,837,206,976 - Step 5: Solve for x
x = 210,355,812,837,206,976/516,917,928.96 - Step 6: Final answer
x = 406,942,381.09
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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.