Finding the Fourth Proportional to 415,865,512.20, 623,798,268.30 and 109,188,625.80
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Solution
The fourth proportional to 415,865,512.20, 623,798,268.30 and 109,188,625.80 is: 163,782,938.70
Step by Step Solution
- Step 1: Write the proportion equation
415,865,512.20 : 623,798,268.30 = 109,188,625.80 : x - Step 2: Convert to fraction form
415,865,512.20/623,798,268.30 = 109,188,625.80/x - Step 3: Cross multiply
415,865,512.20x = 623,798,268.30 × 109,188,625.80 - Step 4: Simplify right side
415,865,512.20x = 68,111,675,692,096,696 - Step 5: Solve for x
x = 68,111,675,692,096,696/415,865,512.20 - Step 6: Final answer
x = 163,782,938.70
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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.