Finding the Fourth Proportional to 1,107,361,756.80, 1,661,042,635.20 and 534,052,828.80
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Solution
The fourth proportional to 1,107,361,756.80, 1,661,042,635.20 and 534,052,828.80 is: 801,079,243.20
Step by Step Solution
- Step 1: Write the proportion equation
1,107,361,756.80 : 1,661,042,635.20 = 534,052,828.80 : x - Step 2: Convert to fraction form
1,107,361,756.80/1,661,042,635.20 = 534,052,828.80/x - Step 3: Cross multiply
1,107,361,756.80x = 1,661,042,635.20 × 534,052,828.80 - Step 4: Simplify right side
1,107,361,756.80x = 887,084,518,085,966,464 - Step 5: Solve for x
x = 887,084,518,085,966,464/1,107,361,756.80 - Step 6: Final answer
x = 801,079,243.20
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Similar ratio
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1.5x scale
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.