Finding the Fourth Proportional to 75,645,241.40, 113,467,862.10 and 66,717,032.60
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Solution
The fourth proportional to 75,645,241.40, 113,467,862.10 and 66,717,032.60 is: 100,075,548.90
Step by Step Solution
- Step 1: Write the proportion equation
75,645,241.40 : 113,467,862.10 = 66,717,032.60 : x - Step 2: Convert to fraction form
75,645,241.40/113,467,862.10 = 66,717,032.60/x - Step 3: Cross multiply
75,645,241.40x = 113,467,862.10 × 66,717,032.60 - Step 4: Simplify right side
75,645,241.40x = 7,570,239,054,778,004 - Step 5: Solve for x
x = 7,570,239,054,778,004/75,645,241.40 - Step 6: Final answer
x = 100,075,548.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.