Finding the Fourth Proportional to 355,492,937.30, 490,599,322.36 and 198,850,702.55
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Solution
The fourth proportional to 355,492,937.30, 490,599,322.36 and 198,850,702.55 is: 274,424,636.00
Step by Step Solution
- Step 1: Write the proportion equation
355,492,937.30 : 490,599,322.36 = 198,850,702.55 : x - Step 2: Convert to fraction form
355,492,937.30/490,599,322.36 = 198,850,702.55/x - Step 3: Cross multiply
355,492,937.30x = 490,599,322.36 × 198,850,702.55 - Step 4: Simplify right side
355,492,937.30x = 97,556,019,918,889,792 - Step 5: Solve for x
x = 97,556,019,918,889,792/355,492,937.30 - Step 6: Final answer
x = 274,424,636.00
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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.