Finding the Fourth Proportional to 13,206,415.80, 19,798,103.70 and 5,124,905.40
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Solution
The fourth proportional to 13,206,415.80, 19,798,103.70 and 5,124,905.40 is: 7,682,887.63
Step by Step Solution
- Step 1: Write the proportion equation
13,206,415.80 : 19,798,103.70 = 5,124,905.40 : x - Step 2: Convert to fraction form
13,206,415.80/19,798,103.70 = 5,124,905.40/x - Step 3: Cross multiply
13,206,415.80x = 19,798,103.70 × 5,124,905.40 - Step 4: Simplify right side
13,206,415.80x = 101,463,408,561,889.98 - Step 5: Solve for x
x = 101,463,408,561,889.98/13,206,415.80 - Step 6: Final answer
x = 7,682,887.63
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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.