Finding the Fourth Proportional to 121,379,254.20, 182,068,881.30 and 107,349,211.80
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Solution
The fourth proportional to 121,379,254.20, 182,068,881.30 and 107,349,211.80 is: 161,023,817.70
Step by Step Solution
- Step 1: Write the proportion equation
121,379,254.20 : 182,068,881.30 = 107,349,211.80 : x - Step 2: Convert to fraction form
121,379,254.20/182,068,881.30 = 107,349,211.80/x - Step 3: Cross multiply
121,379,254.20x = 182,068,881.30 × 107,349,211.80 - Step 4: Simplify right side
121,379,254.20x = 19,544,950,900,862,760 - Step 5: Solve for x
x = 19,544,950,900,862,760/121,379,254.20 - Step 6: Final answer
x = 161,023,817.70
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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.