Finding the Fourth Proportional to 331,609,091.20, 497,408,971.20 and 149,855,977.60
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Solution
The fourth proportional to 331,609,091.20, 497,408,971.20 and 149,855,977.60 is: 224,781,857.99
Step by Step Solution
- Step 1: Write the proportion equation
331,609,091.20 : 497,408,971.20 = 149,855,977.60 : x - Step 2: Convert to fraction form
331,609,091.20/497,408,971.20 = 149,855,977.60/x - Step 3: Cross multiply
331,609,091.20x = 497,408,971.20 × 149,855,977.60 - Step 4: Simplify right side
331,609,091.20x = 74,539,707,646,186,240 - Step 5: Solve for x
x = 74,539,707,646,186,240/331,609,091.20 - Step 6: Final answer
x = 224,781,857.99
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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.