Finding the Fourth Proportional to 145,938,282.60, 201,394,823.76 and 79,858,786.44
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Solution
The fourth proportional to 145,938,282.60, 201,394,823.76 and 79,858,786.44 is: 110,205,121.88
Step by Step Solution
- Step 1: Write the proportion equation
145,938,282.60 : 201,394,823.76 = 79,858,786.44 : x - Step 2: Convert to fraction form
145,938,282.60/201,394,823.76 = 79,858,786.44/x - Step 3: Cross multiply
145,938,282.60x = 201,394,823.76 × 79,858,786.44 - Step 4: Simplify right side
145,938,282.60x = 16,083,146,220,771,276 - Step 5: Solve for x
x = 16,083,146,220,771,276/145,938,282.60 - Step 6: Final answer
x = 110,205,121.88
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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.