Finding the Fourth Proportional to 131,912,814.36, 197,811,484.74 and 54,136,381.08
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Solution
The fourth proportional to 131,912,814.36, 197,811,484.74 and 54,136,381.08 is: 81,180,876.72
Step by Step Solution
- Step 1: Write the proportion equation
131,912,814.36 : 197,811,484.74 = 54,136,381.08 : x - Step 2: Convert to fraction form
131,912,814.36/197,811,484.74 = 54,136,381.08/x - Step 3: Cross multiply
131,912,814.36x = 197,811,484.74 × 54,136,381.08 - Step 4: Simplify right side
131,912,814.36x = 10,708,797,919,885,244 - Step 5: Solve for x
x = 10,708,797,919,885,244/131,912,814.36 - Step 6: Final answer
x = 81,180,876.72
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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.