Finding the Fourth Proportional to 819,785,985,380.18, 1,131,340,221,549.50 and 453,980,188,668.75
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Solution
The fourth proportional to 819,785,985,380.18, 1,131,340,221,549.50 and 453,980,188,668.75 is: 626,512,353,696.07
Step by Step Solution
- Step 1: Write the proportion equation
819,785,985,380.18 : 1,131,340,221,549.50 = 453,980,188,668.75 : x - Step 2: Convert to fraction form
819,785,985,380.18/1,131,340,221,549.50 = 453,980,188,668.75/x - Step 3: Cross multiply
819,785,985,380.18x = 1,131,340,221,549.50 × 453,980,188,668.75 - Step 4: Simplify right side
819,785,985,380.18x = 513,606,047,227,587,401,351,168 - Step 5: Solve for x
x = 513,606,047,227,587,401,351,168/819,785,985,380.18 - Step 6: Final answer
x = 626,512,353,696.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.