Finding the Fourth Proportional to 72,292,998, 99,764,455.41 and 39,253,311.03
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Solution
The fourth proportional to 72,292,998, 99,764,455.41 and 39,253,311.03 is: 54,169,633.38
Step by Step Solution
- Step 1: Write the proportion equation
72,292,998 : 99,764,455.41 = 39,253,311.03 : x - Step 2: Convert to fraction form
72,292,998/99,764,455.41 = 39,253,311.03/x - Step 3: Cross multiply
72,292,998x = 99,764,455.41 × 39,253,311.03 - Step 4: Simplify right side
72,292,998x = 3,916,085,197,947,296 - Step 5: Solve for x
x = 3,916,085,197,947,296/72,292,998 - Step 6: Final answer
x = 54,169,633.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.