Finding the Fourth Proportional to 513,145,638.74, 769,718,444.49 and 236,715,066.22
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Solution
The fourth proportional to 513,145,638.74, 769,718,444.49 and 236,715,066.22 is: 355,072,593.05
Step by Step Solution
- Step 1: Write the proportion equation
513,145,638.74 : 769,718,444.49 = 236,715,066.22 : x - Step 2: Convert to fraction form
513,145,638.74/769,718,444.49 = 236,715,066.22/x - Step 3: Cross multiply
513,145,638.74x = 769,718,444.49 × 236,715,066.22 - Step 4: Simplify right side
513,145,638.74x = 182,203,952,557,022,176 - Step 5: Solve for x
x = 182,203,952,557,022,176/513,145,638.74 - Step 6: Final answer
x = 355,072,593.05
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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.