Finding the Fourth Proportional to 289,385,425.70, 434,582,023.35 and 153,336,529.70
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Solution
The fourth proportional to 289,385,425.70, 434,582,023.35 and 153,336,529.70 is: 230,271,787.77
Step by Step Solution
- Step 1: Write the proportion equation
289,385,425.70 : 434,582,023.35 = 153,336,529.70 : x - Step 2: Convert to fraction form
289,385,425.70/434,582,023.35 = 153,336,529.70/x - Step 3: Cross multiply
289,385,425.70x = 434,582,023.35 × 153,336,529.70 - Step 4: Simplify right side
289,385,425.70x = 66,637,299,330,493,368 - Step 5: Solve for x
x = 66,637,299,330,493,368/289,385,425.70 - Step 6: Final answer
x = 230,271,787.77
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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.