Finding the Fourth Proportional to 647,184,520.10, 970,776,780.15 and 374,414,881.70
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Solution
The fourth proportional to 647,184,520.10, 970,776,780.15 and 374,414,881.70 is: 561,622,322.55
Step by Step Solution
- Step 1: Write the proportion equation
647,184,520.10 : 970,776,780.15 = 374,414,881.70 : x - Step 2: Convert to fraction form
647,184,520.10/970,776,780.15 = 374,414,881.70/x - Step 3: Cross multiply
647,184,520.10x = 970,776,780.15 × 374,414,881.70 - Step 4: Simplify right side
647,184,520.10x = 363,473,273,296,969,152 - Step 5: Solve for x
x = 363,473,273,296,969,152/647,184,520.10 - Step 6: Final answer
x = 561,622,322.55
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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.