Finding the Fourth Proportional to 13,299,073.74, 19,919,742.18 and 8,165,922.30
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Solution
The fourth proportional to 13,299,073.74, 19,919,742.18 and 8,165,922.30 is: 12,231,157.60
Step by Step Solution
- Step 1: Write the proportion equation
13,299,073.74 : 19,919,742.18 = 8,165,922.30 : x - Step 2: Convert to fraction form
13,299,073.74/19,919,742.18 = 8,165,922.30/x - Step 3: Cross multiply
13,299,073.74x = 19,919,742.18 × 8,165,922.30 - Step 4: Simplify right side
13,299,073.74x = 162,663,066,877,912.59 - Step 5: Solve for x
x = 162,663,066,877,912.59/13,299,073.74 - Step 6: Final answer
x = 12,231,157.60
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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.