Finding the Fourth Proportional to 145,918,922.40, 201,366,619.92 and 80,729,292.96
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Solution
The fourth proportional to 145,918,922.40, 201,366,619.92 and 80,729,292.96 is: 111,405,598.29
Step by Step Solution
- Step 1: Write the proportion equation
145,918,922.40 : 201,366,619.92 = 80,729,292.96 : x - Step 2: Convert to fraction form
145,918,922.40/201,366,619.92 = 80,729,292.96/x - Step 3: Cross multiply
145,918,922.40x = 201,366,619.92 × 80,729,292.96 - Step 4: Simplify right side
145,918,922.40x = 16,256,184,851,886,650 - Step 5: Solve for x
x = 16,256,184,851,886,650/145,918,922.40 - Step 6: Final answer
x = 111,405,598.29
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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.