Finding the Fourth Proportional to 485,532,161.12, 670,086,307.36 and 297,485,250.80
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Solution
The fourth proportional to 485,532,161.12, 670,086,307.36 and 297,485,250.80 is: 410,561,460.53
Step by Step Solution
- Step 1: Write the proportion equation
485,532,161.12 : 670,086,307.36 = 297,485,250.80 : x - Step 2: Convert to fraction form
485,532,161.12/670,086,307.36 = 297,485,250.80/x - Step 3: Cross multiply
485,532,161.12x = 670,086,307.36 × 297,485,250.80 - Step 4: Simplify right side
485,532,161.12x = 199,340,793,202,635,488 - Step 5: Solve for x
x = 199,340,793,202,635,488/485,532,161.12 - Step 6: Final answer
x = 410,561,460.53
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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.