Finding the Fourth Proportional to 1,706,722,391.49, 2,560,084,576.25 and 479,890,842.99
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Solution
The fourth proportional to 1,706,722,391.49, 2,560,084,576.25 and 479,890,842.99 is: 719,836,542.57
Step by Step Solution
- Step 1: Write the proportion equation
1,706,722,391.49 : 2,560,084,576.25 = 479,890,842.99 : x - Step 2: Convert to fraction form
1,706,722,391.49/2,560,084,576.25 = 479,890,842.99/x - Step 3: Cross multiply
1,706,722,391.49x = 2,560,084,576.25 × 479,890,842.99 - Step 4: Simplify right side
1,706,722,391.49x = 1,228,561,145,419,909,888 - Step 5: Solve for x
x = 1,228,561,145,419,909,888/1,706,722,391.49 - Step 6: Final answer
x = 719,836,542.57
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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.