Finding the Fourth Proportional to 4,688,128,226.40, 6,469,379,365.50 and 2,782,971,137.31
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Solution
The fourth proportional to 4,688,128,226.40, 6,469,379,365.50 and 2,782,971,137.31 is: 3,840,359,132.91
Step by Step Solution
- Step 1: Write the proportion equation
4,688,128,226.40 : 6,469,379,365.50 = 2,782,971,137.31 : x - Step 2: Convert to fraction form
4,688,128,226.40/6,469,379,365.50 = 2,782,971,137.31/x - Step 3: Cross multiply
4,688,128,226.40x = 6,469,379,365.50 × 2,782,971,137.31 - Step 4: Simplify right side
4,688,128,226.40x = 18,004,096,050,495,381,504 - Step 5: Solve for x
x = 18,004,096,050,495,381,504/4,688,128,226.40 - Step 6: Final answer
x = 3,840,359,132.91
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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.