Finding the Fourth Proportional to 145,938,255.12, 201,394,785.68 and 79,858,758.84
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Solution
The fourth proportional to 145,938,255.12, 201,394,785.68 and 79,858,758.84 is: 110,205,083.70
Step by Step Solution
- Step 1: Write the proportion equation
145,938,255.12 : 201,394,785.68 = 79,858,758.84 : x - Step 2: Convert to fraction form
145,938,255.12/201,394,785.68 = 79,858,758.84/x - Step 3: Cross multiply
145,938,255.12x = 201,394,785.68 × 79,858,758.84 - Step 4: Simplify right side
145,938,255.12x = 16,083,137,621,452,254 - Step 5: Solve for x
x = 16,083,137,621,452,254/145,938,255.12 - Step 6: Final answer
x = 110,205,083.70
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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.