Finding the Fourth Proportional to 1,577,657,161.20, 2,361,950,778.60 and 965,437,129.20
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Solution
The fourth proportional to 1,577,657,161.20, 2,361,950,778.60 and 965,437,129.20 is: 1,445,380,552.31
Step by Step Solution
- Step 1: Write the proportion equation
1,577,657,161.20 : 2,361,950,778.60 = 965,437,129.20 : x - Step 2: Convert to fraction form
1,577,657,161.20/2,361,950,778.60 = 965,437,129.20/x - Step 3: Cross multiply
1,577,657,161.20x = 2,361,950,778.60 × 965,437,129.20 - Step 4: Simplify right side
1,577,657,161.20x = 2,280,314,979,003,288,832 - Step 5: Solve for x
x = 2,280,314,979,003,288,832/1,577,657,161.20 - Step 6: Final answer
x = 1,445,380,552.31
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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.