Finding the Fourth Proportional to 16,789,235.80, 25,183,853.70 and 13,430,003.80
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Solution
The fourth proportional to 16,789,235.80, 25,183,853.70 and 13,430,003.80 is: 20,145,005.70
Step by Step Solution
- Step 1: Write the proportion equation
16,789,235.80 : 25,183,853.70 = 13,430,003.80 : x - Step 2: Convert to fraction form
16,789,235.80/25,183,853.70 = 13,430,003.80/x - Step 3: Cross multiply
16,789,235.80x = 25,183,853.70 × 13,430,003.80 - Step 4: Simplify right side
16,789,235.80x = 338,219,250,889,644.06 - Step 5: Solve for x
x = 338,219,250,889,644.06/16,789,235.80 - Step 6: Final answer
x = 20,145,005.70
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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.