Finding the Fourth Proportional to 72,292,709.35, 99,761,140.80 and 39,252,202.26
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Solution
The fourth proportional to 72,292,709.35, 99,761,140.80 and 39,252,202.26 is: 54,166,519.85
Step by Step Solution
- Step 1: Write the proportion equation
72,292,709.35 : 99,761,140.80 = 39,252,202.26 : x - Step 2: Convert to fraction form
72,292,709.35/99,761,140.80 = 39,252,202.26/x - Step 3: Cross multiply
72,292,709.35x = 99,761,140.80 × 39,252,202.26 - Step 4: Simplify right side
72,292,709.35x = 3,915,844,476,369,938 - Step 5: Solve for x
x = 3,915,844,476,369,938/72,292,709.35 - Step 6: Final answer
x = 54,166,519.85
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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.