Finding the Fourth Proportional to 121,379,165.70, 182,068,748.55 and 107,349,123.30
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Solution
The fourth proportional to 121,379,165.70, 182,068,748.55 and 107,349,123.30 is: 161,023,684.95
Step by Step Solution
- Step 1: Write the proportion equation
121,379,165.70 : 182,068,748.55 = 107,349,123.30 : x - Step 2: Convert to fraction form
121,379,165.70/182,068,748.55 = 107,349,123.30/x - Step 3: Cross multiply
121,379,165.70x = 182,068,748.55 × 107,349,123.30 - Step 4: Simplify right side
121,379,165.70x = 19,544,920,537,170,648 - Step 5: Solve for x
x = 19,544,920,537,170,648/121,379,165.70 - Step 6: Final answer
x = 161,023,684.95
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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.