Finding the Fourth Proportional to 12,591,750.30, 18,887,625.45 and 4,072,947.90
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Solution
The fourth proportional to 12,591,750.30, 18,887,625.45 and 4,072,947.90 is: 6,109,421.85
Step by Step Solution
- Step 1: Write the proportion equation
12,591,750.30 : 18,887,625.45 = 4,072,947.90 : x - Step 2: Convert to fraction form
12,591,750.30/18,887,625.45 = 4,072,947.90/x - Step 3: Cross multiply
12,591,750.30x = 18,887,625.45 × 4,072,947.90 - Step 4: Simplify right side
12,591,750.30x = 76,928,314,412,564.05 - Step 5: Solve for x
x = 76,928,314,412,564.05/12,591,750.30 - Step 6: Final answer
x = 6,109,421.85
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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.