Finding the Fourth Proportional to 5,408,996,221.02, 7,471,416,768.75 and 4,472,979,816.54
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Solution
The fourth proportional to 5,408,996,221.02, 7,471,416,768.75 and 4,472,979,816.54 is: 6,178,502,450.73
Step by Step Solution
- Step 1: Write the proportion equation
5,408,996,221.02 : 7,471,416,768.75 = 4,472,979,816.54 : x - Step 2: Convert to fraction form
5,408,996,221.02/7,471,416,768.75 = 4,472,979,816.54/x - Step 3: Cross multiply
5,408,996,221.02x = 7,471,416,768.75 × 4,472,979,816.54 - Step 4: Simplify right side
5,408,996,221.02x = 33,419,496,407,577,255,936 - Step 5: Solve for x
x = 33,419,496,407,577,255,936/5,408,996,221.02 - Step 6: Final answer
x = 6,178,502,450.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.