Finding the Fourth Proportional to 72,179,235.12, 99,598,138.20 and 41,241,408.24
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Solution
The fourth proportional to 72,179,235.12, 99,598,138.20 and 41,241,408.24 is: 56,907,883.14
Step by Step Solution
- Step 1: Write the proportion equation
72,179,235.12 : 99,598,138.20 = 41,241,408.24 : x - Step 2: Convert to fraction form
72,179,235.12/99,598,138.20 = 41,241,408.24/x - Step 3: Cross multiply
72,179,235.12x = 99,598,138.20 × 41,241,408.24 - Step 4: Simplify right side
72,179,235.12x = 4,107,567,477,450,139 - Step 5: Solve for x
x = 4,107,567,477,450,139/72,179,235.12 - Step 6: Final answer
x = 56,907,883.14
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1.5x scale
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.