Finding the Fourth Proportional to 379,764,343.20, 569,646,514.80 and 236,437,111.20
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Solution
The fourth proportional to 379,764,343.20, 569,646,514.80 and 236,437,111.20 is: 354,655,666.80
Step by Step Solution
- Step 1: Write the proportion equation
379,764,343.20 : 569,646,514.80 = 236,437,111.20 : x - Step 2: Convert to fraction form
379,764,343.20/569,646,514.80 = 236,437,111.20/x - Step 3: Cross multiply
379,764,343.20x = 569,646,514.80 × 236,437,111.20 - Step 4: Simplify right side
379,764,343.20x = 134,685,576,364,460,032 - Step 5: Solve for x
x = 134,685,576,364,460,032/379,764,343.20 - Step 6: Final answer
x = 354,655,666.80
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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.