Finding the Fourth Proportional to 156,616,931.20, 234,925,396.80 and 54,370,307.20
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Solution
The fourth proportional to 156,616,931.20, 234,925,396.80 and 54,370,307.20 is: 81,555,460.80
Step by Step Solution
- Step 1: Write the proportion equation
156,616,931.20 : 234,925,396.80 = 54,370,307.20 : x - Step 2: Convert to fraction form
156,616,931.20/234,925,396.80 = 54,370,307.20/x - Step 3: Cross multiply
156,616,931.20x = 234,925,396.80 × 54,370,307.20 - Step 4: Simplify right side
156,616,931.20x = 12,772,965,993,097,898 - Step 5: Solve for x
x = 12,772,965,993,097,898/156,616,931.20 - Step 6: Final answer
x = 81,555,460.80
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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.