Finding the Fourth Proportional to 390,205,108.08, 585,250,688.04 and 113,782,042.44
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Solution
The fourth proportional to 390,205,108.08, 585,250,688.04 and 113,782,042.44 is: 170,656,450.28
Step by Step Solution
- Step 1: Write the proportion equation
390,205,108.08 : 585,250,688.04 = 113,782,042.44 : x - Step 2: Convert to fraction form
390,205,108.08/585,250,688.04 = 113,782,042.44/x - Step 3: Cross multiply
390,205,108.08x = 585,250,688.04 × 113,782,042.44 - Step 4: Simplify right side
390,205,108.08x = 66,591,018,624,606,472 - Step 5: Solve for x
x = 66,591,018,624,606,472/390,205,108.08 - Step 6: Final answer
x = 170,656,450.28
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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.