Finding the Fourth Proportional to 472,343,073.21, 651,963,105.05 and 274,168,412.96
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Solution
The fourth proportional to 472,343,073.21, 651,963,105.05 and 274,168,412.96 is: 378,427,672.50
Step by Step Solution
- Step 1: Write the proportion equation
472,343,073.21 : 651,963,105.05 = 274,168,412.96 : x - Step 2: Convert to fraction form
472,343,073.21/651,963,105.05 = 274,168,412.96/x - Step 3: Cross multiply
472,343,073.21x = 651,963,105.05 × 274,168,412.96 - Step 4: Simplify right side
472,343,073.21x = 178,747,689,815,401,568 - Step 5: Solve for x
x = 178,747,689,815,401,568/472,343,073.21 - Step 6: Final answer
x = 378,427,672.50
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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.