Finding the Fourth Proportional to 1,638,591,937,621.60, 2,261,207,783,565.20 and 907,010,331,423.35
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Solution
The fourth proportional to 1,638,591,937,621.60, 2,261,207,783,565.20 and 907,010,331,423.35 is: 1,251,647,084,365.28
Step by Step Solution
- Step 1: Write the proportion equation
1,638,591,937,621.60 : 2,261,207,783,565.20 = 907,010,331,423.35 : x - Step 2: Convert to fraction form
1,638,591,937,621.60/2,261,207,783,565.20 = 907,010,331,423.35/x - Step 3: Cross multiply
1,638,591,937,621.60x = 2,261,207,783,565.20 × 907,010,331,423.35 - Step 4: Simplify right side
1,638,591,937,621.60x = 2,050,938,821,188,530,772,901,888 - Step 5: Solve for x
x = 2,050,938,821,188,530,772,901,888/1,638,591,937,621.60 - Step 6: Final answer
x = 1,251,647,084,365.28
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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.