Finding the Fourth Proportional to 12,979,283.36, 19,467,437.68 and 3,395,586.72
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Solution
The fourth proportional to 12,979,283.36, 19,467,437.68 and 3,395,586.72 is: 5,092,990.96
Step by Step Solution
- Step 1: Write the proportion equation
12,979,283.36 : 19,467,437.68 = 3,395,586.72 : x - Step 2: Convert to fraction form
12,979,283.36/19,467,437.68 = 3,395,586.72/x - Step 3: Cross multiply
12,979,283.36x = 19,467,437.68 × 3,395,586.72 - Step 4: Simplify right side
12,979,283.36x = 66,103,372,858,635.61 - Step 5: Solve for x
x = 66,103,372,858,635.61/12,979,283.36 - Step 6: Final answer
x = 5,092,990.96
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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.