Finding the Fourth Proportional to 13,239,725.80, 19,859,588.70 and 8,704,762.60
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Solution
The fourth proportional to 13,239,725.80, 19,859,588.70 and 8,704,762.60 is: 13,057,143.90
Step by Step Solution
- Step 1: Write the proportion equation
13,239,725.80 : 19,859,588.70 = 8,704,762.60 : x - Step 2: Convert to fraction form
13,239,725.80/19,859,588.70 = 8,704,762.60/x - Step 3: Cross multiply
13,239,725.80x = 19,859,588.70 × 8,704,762.60 - Step 4: Simplify right side
13,239,725.80x = 172,873,004,967,142.59 - Step 5: Solve for x
x = 172,873,004,967,142.59/13,239,725.80 - Step 6: Final answer
x = 13,057,143.90
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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.