Finding the Fourth Proportional to 401,528,081.20, 602,292,121.80 and 299,491,409.20
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Solution
The fourth proportional to 401,528,081.20, 602,292,121.80 and 299,491,409.20 is: 449,237,113.80
Step by Step Solution
- Step 1: Write the proportion equation
401,528,081.20 : 602,292,121.80 = 299,491,409.20 : x - Step 2: Convert to fraction form
401,528,081.20/602,292,121.80 = 299,491,409.20/x - Step 3: Cross multiply
401,528,081.20x = 602,292,121.80 × 299,491,409.20 - Step 4: Simplify right side
401,528,081.20x = 180,381,316,307,940,032 - Step 5: Solve for x
x = 180,381,316,307,940,032/401,528,081.20 - Step 6: Final answer
x = 449,237,113.80
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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.