Finding the Fourth Proportional to 17,381,458.40, 26,100,181.20 and 13,126,431.20
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Solution
The fourth proportional to 17,381,458.40, 26,100,181.20 and 13,126,431.20 is: 19,710,787.49
Step by Step Solution
- Step 1: Write the proportion equation
17,381,458.40 : 26,100,181.20 = 13,126,431.20 : x - Step 2: Convert to fraction form
17,381,458.40/26,100,181.20 = 13,126,431.20/x - Step 3: Cross multiply
17,381,458.40x = 26,100,181.20 × 13,126,431.20 - Step 4: Simplify right side
17,381,458.40x = 342,602,232,829,333.44 - Step 5: Solve for x
x = 342,602,232,829,333.44/17,381,458.40 - Step 6: Final answer
x = 19,710,787.49
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1.5x scale
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.