Finding the Fourth Proportional to 746,498,470.80, 1,120,307,578.20 and 382,805,619.60
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Solution
The fourth proportional to 746,498,470.80, 1,120,307,578.20 and 382,805,619.60 is: 574,495,532.66
Step by Step Solution
- Step 1: Write the proportion equation
746,498,470.80 : 1,120,307,578.20 = 382,805,619.60 : x - Step 2: Convert to fraction form
746,498,470.80/1,120,307,578.20 = 382,805,619.60/x - Step 3: Cross multiply
746,498,470.80x = 1,120,307,578.20 × 382,805,619.60 - Step 4: Simplify right side
746,498,470.80x = 428,860,036,615,426,496 - Step 5: Solve for x
x = 428,860,036,615,426,496/746,498,470.80 - Step 6: Final answer
x = 574,495,532.66
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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.