Finding the Fourth Proportional to 7,220,315.54, 9,958,295.84 and 6,136,175.90
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Solution
The fourth proportional to 7,220,315.54, 9,958,295.84 and 6,136,175.90 is: 8,463,044.95
Step by Step Solution
- Step 1: Write the proportion equation
7,220,315.54 : 9,958,295.84 = 6,136,175.90 : x - Step 2: Convert to fraction form
7,220,315.54/9,958,295.84 = 6,136,175.90/x - Step 3: Cross multiply
7,220,315.54x = 9,958,295.84 × 6,136,175.90 - Step 4: Simplify right side
7,220,315.54x = 61,105,854,938,478.26 - Step 5: Solve for x
x = 61,105,854,938,478.26/7,220,315.54 - Step 6: Final answer
x = 8,463,044.95
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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.