Finding the Fourth Proportional to 72,292,707.35, 99,761,138.04 and 39,252,200.26
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Solution
The fourth proportional to 72,292,707.35, 99,761,138.04 and 39,252,200.26 is: 54,166,517.09
Step by Step Solution
- Step 1: Write the proportion equation
72,292,707.35 : 99,761,138.04 = 39,252,200.26 : x - Step 2: Convert to fraction form
72,292,707.35/99,761,138.04 = 39,252,200.26/x - Step 3: Cross multiply
72,292,707.35x = 99,761,138.04 × 39,252,200.26 - Step 4: Simplify right side
72,292,707.35x = 3,915,844,168,012,778.50 - Step 5: Solve for x
x = 3,915,844,168,012,778.50/72,292,707.35 - Step 6: Final answer
x = 54,166,517.09
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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.