Finding the Fourth Proportional to 1,659,522,661.60, 2,489,283,992.40 and 1,292,190,642.40
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Solution
The fourth proportional to 1,659,522,661.60, 2,489,283,992.40 and 1,292,190,642.40 is: 1,938,285,963.60
Step by Step Solution
- Step 1: Write the proportion equation
1,659,522,661.60 : 2,489,283,992.40 = 1,292,190,642.40 : x - Step 2: Convert to fraction form
1,659,522,661.60/2,489,283,992.40 = 1,292,190,642.40/x - Step 3: Cross multiply
1,659,522,661.60x = 2,489,283,992.40 × 1,292,190,642.40 - Step 4: Simplify right side
1,659,522,661.60x = 3,216,629,481,255,393,280 - Step 5: Solve for x
x = 3,216,629,481,255,393,280/1,659,522,661.60 - Step 6: Final answer
x = 1,938,285,963.60
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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.