Finding the Fourth Proportional to 621,486,693,851.15, 857,642,584,578.50 and 347,136,250,210.65
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Solution
The fourth proportional to 621,486,693,851.15, 857,642,584,578.50 and 347,136,250,210.65 is: 479,042,968,702.49
Step by Step Solution
- Step 1: Write the proportion equation
621,486,693,851.15 : 857,642,584,578.50 = 347,136,250,210.65 : x - Step 2: Convert to fraction form
621,486,693,851.15/857,642,584,578.50 = 347,136,250,210.65/x - Step 3: Cross multiply
621,486,693,851.15x = 857,642,584,578.50 × 347,136,250,210.65 - Step 4: Simplify right side
621,486,693,851.15x = 297,718,830,831,550,737,678,336 - Step 5: Solve for x
x = 297,718,830,831,550,737,678,336/621,486,693,851.15 - Step 6: Final answer
x = 479,042,968,702.49
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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.