Finding the Fourth Proportional to 13,842,782.98, 19,102,462.29 and 7,961,969.94
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Solution
The fourth proportional to 13,842,782.98, 19,102,462.29 and 7,961,969.94 is: 10,987,185.94
Step by Step Solution
- Step 1: Write the proportion equation
13,842,782.98 : 19,102,462.29 = 7,961,969.94 : x - Step 2: Convert to fraction form
13,842,782.98/19,102,462.29 = 7,961,969.94/x - Step 3: Cross multiply
13,842,782.98x = 19,102,462.29 × 7,961,969.94 - Step 4: Simplify right side
13,842,782.98x = 152,093,230,532,963.56 - Step 5: Solve for x
x = 152,093,230,532,963.56/13,842,782.98 - Step 6: Final answer
x = 10,987,185.94
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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.