Finding the Fourth Proportional to 808,201,375.20, 1,212,302,062.80 and 614,491,130.70
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Solution
The fourth proportional to 808,201,375.20, 1,212,302,062.80 and 614,491,130.70 is: 921,736,696.05
Step by Step Solution
- Step 1: Write the proportion equation
808,201,375.20 : 1,212,302,062.80 = 614,491,130.70 : x - Step 2: Convert to fraction form
808,201,375.20/1,212,302,062.80 = 614,491,130.70/x - Step 3: Cross multiply
808,201,375.20x = 1,212,302,062.80 × 614,491,130.70 - Step 4: Simplify right side
808,201,375.20x = 744,948,865,319,914,496 - Step 5: Solve for x
x = 744,948,865,319,914,496/808,201,375.20 - Step 6: Final answer
x = 921,736,696.05
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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.