Finding the Fourth Proportional to 191,190,439.29, 263,827,714.41 and 107,541,916.55
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Solution
The fourth proportional to 191,190,439.29, 263,827,714.41 and 107,541,916.55 is: 148,399,355.90
Step by Step Solution
- Step 1: Write the proportion equation
191,190,439.29 : 263,827,714.41 = 107,541,916.55 : x - Step 2: Convert to fraction form
191,190,439.29/263,827,714.41 = 107,541,916.55/x - Step 3: Cross multiply
191,190,439.29x = 263,827,714.41 × 107,541,916.55 - Step 4: Simplify right side
191,190,439.29x = 28,372,538,046,327,668 - Step 5: Solve for x
x = 28,372,538,046,327,668/191,190,439.29 - Step 6: Final answer
x = 148,399,355.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.