Finding the Fourth Proportional to 156,616,938.70, 234,925,408.05 and 54,370,314.70
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Solution
The fourth proportional to 156,616,938.70, 234,925,408.05 and 54,370,314.70 is: 81,555,472.05
Step by Step Solution
- Step 1: Write the proportion equation
156,616,938.70 : 234,925,408.05 = 54,370,314.70 : x - Step 2: Convert to fraction form
156,616,938.70/234,925,408.05 = 54,370,314.70/x - Step 3: Cross multiply
156,616,938.70x = 234,925,408.05 × 54,370,314.70 - Step 4: Simplify right side
156,616,938.70x = 12,772,968,366,704,414 - Step 5: Solve for x
x = 12,772,968,366,704,414/156,616,938.70 - Step 6: Final answer
x = 81,555,472.05
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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.