Finding the Fourth Proportional to 75,481,239.10, 113,209,247.63 and 20,899,342.42
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Solution
The fourth proportional to 75,481,239.10, 113,209,247.63 and 20,899,342.42 is: 31,345,521.88
Step by Step Solution
- Step 1: Write the proportion equation
75,481,239.10 : 113,209,247.63 = 20,899,342.42 : x - Step 2: Convert to fraction form
75,481,239.10/113,209,247.63 = 20,899,342.42/x - Step 3: Cross multiply
75,481,239.10x = 113,209,247.63 × 20,899,342.42 - Step 4: Simplify right side
75,481,239.10x = 2,365,998,831,735,970.50 - Step 5: Solve for x
x = 2,365,998,831,735,970.50/75,481,239.10 - Step 6: Final answer
x = 31,345,521.88
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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.