Finding the Fourth Proportional to 681,551,619.21, 1,020,230,625.40 and 444,691,122.91
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Solution
The fourth proportional to 681,551,619.21, 1,020,230,625.40 and 444,691,122.91 is: 665,668,585.69
Step by Step Solution
- Step 1: Write the proportion equation
681,551,619.21 : 1,020,230,625.40 = 444,691,122.91 : x - Step 2: Convert to fraction form
681,551,619.21/1,020,230,625.40 = 444,691,122.91/x - Step 3: Cross multiply
681,551,619.21x = 1,020,230,625.40 × 444,691,122.91 - Step 4: Simplify right side
681,551,619.21x = 453,687,502,436,223,296 - Step 5: Solve for x
x = 453,687,502,436,223,296/681,551,619.21 - Step 6: Final answer
x = 665,668,585.69
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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.