Finding the Fourth Proportional to 13,239,969.80, 19,859,954.70 and 8,201,121.80
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Solution
The fourth proportional to 13,239,969.80, 19,859,954.70 and 8,201,121.80 is: 12,301,682.70
Step by Step Solution
- Step 1: Write the proportion equation
13,239,969.80 : 19,859,954.70 = 8,201,121.80 : x - Step 2: Convert to fraction form
13,239,969.80/19,859,954.70 = 8,201,121.80/x - Step 3: Cross multiply
13,239,969.80x = 19,859,954.70 × 8,201,121.80 - Step 4: Simplify right side
13,239,969.80x = 162,873,907,437,182.44 - Step 5: Solve for x
x = 162,873,907,437,182.44/13,239,969.80 - Step 6: Final answer
x = 12,301,682.70
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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.