Finding the Fourth Proportional to 355,513,030.08, 490,608,701.68 and 198,882,752.72
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Solution
The fourth proportional to 355,513,030.08, 490,608,701.68 and 198,882,752.72 is: 274,458,601.63
Step by Step Solution
- Step 1: Write the proportion equation
355,513,030.08 : 490,608,701.68 = 198,882,752.72 : x - Step 2: Convert to fraction form
355,513,030.08/490,608,701.68 = 198,882,752.72/x - Step 3: Cross multiply
355,513,030.08x = 490,608,701.68 × 198,882,752.72 - Step 4: Simplify right side
355,513,030.08x = 97,573,609,098,503,696 - Step 5: Solve for x
x = 97,573,609,098,503,696/355,513,030.08 - Step 6: Final answer
x = 274,458,601.63
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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.