Finding the Fourth Proportional to 101,546,720.19, 140,130,543.60 and 55,135,912.05
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Solution
The fourth proportional to 101,546,720.19, 140,130,543.60 and 55,135,912.05 is: 76,085,424.65
Step by Step Solution
- Step 1: Write the proportion equation
101,546,720.19 : 140,130,543.60 = 55,135,912.05 : x - Step 2: Convert to fraction form
101,546,720.19/140,130,543.60 = 55,135,912.05/x - Step 3: Cross multiply
101,546,720.19x = 140,130,543.60 × 55,135,912.05 - Step 4: Simplify right side
101,546,720.19x = 7,726,225,327,448,290 - Step 5: Solve for x
x = 7,726,225,327,448,290/101,546,720.19 - Step 6: Final answer
x = 76,085,424.65
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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.