Finding the Fourth Proportional to 1,577,660,219.20, 2,361,955,365.60 and 965,440,187.20
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Solution
The fourth proportional to 1,577,660,219.20, 2,361,955,365.60 and 965,440,187.20 is: 1,445,385,135.89
Step by Step Solution
- Step 1: Write the proportion equation
1,577,660,219.20 : 2,361,955,365.60 = 965,440,187.20 : x - Step 2: Convert to fraction form
1,577,660,219.20/2,361,955,365.60 = 965,440,187.20/x - Step 3: Cross multiply
1,577,660,219.20x = 2,361,955,365.60 × 965,440,187.20 - Step 4: Simplify right side
1,577,660,219.20x = 2,280,326,630,322,908,416 - Step 5: Solve for x
x = 2,280,326,630,322,908,416/1,577,660,219.20 - Step 6: Final answer
x = 1,445,385,135.89
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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.