Finding the Fourth Proportional to 202,421,408.60, 279,132,765.18 and 173,149,647.32
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Solution
The fourth proportional to 202,421,408.60, 279,132,765.18 and 173,149,647.32 is: 238,767,925.69
Step by Step Solution
- Step 1: Write the proportion equation
202,421,408.60 : 279,132,765.18 = 173,149,647.32 : x - Step 2: Convert to fraction form
202,421,408.60/279,132,765.18 = 173,149,647.32/x - Step 3: Cross multiply
202,421,408.60x = 279,132,765.18 × 173,149,647.32 - Step 4: Simplify right side
202,421,408.60x = 48,331,739,846,373,376 - Step 5: Solve for x
x = 48,331,739,846,373,376/202,421,408.60 - Step 6: Final answer
x = 238,767,925.69
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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.