Finding the Fourth Proportional to 19,739,628.80, 29,598,945.60 and 8,367,228.80
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Solution
The fourth proportional to 19,739,628.80, 29,598,945.60 and 8,367,228.80 is: 12,546,393.48
Step by Step Solution
- Step 1: Write the proportion equation
19,739,628.80 : 29,598,945.60 = 8,367,228.80 : x - Step 2: Convert to fraction form
19,739,628.80/29,598,945.60 = 8,367,228.80/x - Step 3: Cross multiply
19,739,628.80x = 29,598,945.60 × 8,367,228.80 - Step 4: Simplify right side
19,739,628.80x = 247,661,150,073,953.28 - Step 5: Solve for x
x = 247,661,150,073,953.28/19,739,628.80 - Step 6: Final answer
x = 12,546,393.48
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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.