Finding the Fourth Proportional to 211,995,859.03, 317,993,899.48 and 66,440,756.79
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Solution
The fourth proportional to 211,995,859.03, 317,993,899.48 and 66,440,756.79 is: 99,661,169.95
Step by Step Solution
- Step 1: Write the proportion equation
211,995,859.03 : 317,993,899.48 = 66,440,756.79 : x - Step 2: Convert to fraction form
211,995,859.03/317,993,899.48 = 66,440,756.79/x - Step 3: Cross multiply
211,995,859.03x = 317,993,899.48 × 66,440,756.79 - Step 4: Simplify right side
211,995,859.03x = 21,127,755,335,888,288 - Step 5: Solve for x
x = 21,127,755,335,888,288/211,995,859.03 - Step 6: Final answer
x = 99,661,169.95
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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.