Finding the Fourth Proportional to 2,489,938,129.80, 3,734,907,194.70 and 766,652,113.80
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Solution
The fourth proportional to 2,489,938,129.80, 3,734,907,194.70 and 766,652,113.80 is: 1,149,978,170.70
Step by Step Solution
- Step 1: Write the proportion equation
2,489,938,129.80 : 3,734,907,194.70 = 766,652,113.80 : x - Step 2: Convert to fraction form
2,489,938,129.80/3,734,907,194.70 = 766,652,113.80/x - Step 3: Cross multiply
2,489,938,129.80x = 3,734,907,194.70 × 766,652,113.80 - Step 4: Simplify right side
2,489,938,129.80x = 2,863,374,495,663,582,720 - Step 5: Solve for x
x = 2,863,374,495,663,582,720/2,489,938,129.80 - Step 6: Final answer
x = 1,149,978,170.70
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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.