Finding the Fourth Proportional to 120,963,913.20, 181,445,869.80 and 44,261,449.20
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Solution
The fourth proportional to 120,963,913.20, 181,445,869.80 and 44,261,449.20 is: 66,392,173.80
Step by Step Solution
- Step 1: Write the proportion equation
120,963,913.20 : 181,445,869.80 = 44,261,449.20 : x - Step 2: Convert to fraction form
120,963,913.20/181,445,869.80 = 44,261,449.20/x - Step 3: Cross multiply
120,963,913.20x = 181,445,869.80 × 44,261,449.20 - Step 4: Simplify right side
120,963,913.20x = 8,031,057,148,702,515 - Step 5: Solve for x
x = 8,031,057,148,702,515/120,963,913.20 - Step 6: Final answer
x = 66,392,173.80
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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.