Finding the Fourth Proportional to 7,202,395,089.22, 9,940,344,877.98 and 4,149,986,759.80
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Solution
The fourth proportional to 7,202,395,089.22, 9,940,344,877.98 and 4,149,986,759.80 is: 5,727,580,772.85
Step by Step Solution
- Step 1: Write the proportion equation
7,202,395,089.22 : 9,940,344,877.98 = 4,149,986,759.80 : x - Step 2: Convert to fraction form
7,202,395,089.22/9,940,344,877.98 = 4,149,986,759.80/x - Step 3: Cross multiply
7,202,395,089.22x = 9,940,344,877.98 × 4,149,986,759.80 - Step 4: Simplify right side
7,202,395,089.22x = 41,252,299,631,462,744,064 - Step 5: Solve for x
x = 41,252,299,631,462,744,064/7,202,395,089.22 - Step 6: Final answer
x = 5,727,580,772.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.