Finding the Fourth Proportional to 13,250,623.04, 18,285,749.84 and 7,449,430.64
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Solution
The fourth proportional to 13,250,623.04, 18,285,749.84 and 7,449,430.64 is: 10,280,152.47
Step by Step Solution
- Step 1: Write the proportion equation
13,250,623.04 : 18,285,749.84 = 7,449,430.64 : x - Step 2: Convert to fraction form
13,250,623.04/18,285,749.84 = 7,449,430.64/x - Step 3: Cross multiply
13,250,623.04x = 18,285,749.84 × 7,449,430.64 - Step 4: Simplify right side
13,250,623.04x = 136,218,425,133,471.09 - Step 5: Solve for x
x = 136,218,425,133,471.09/13,250,623.04 - Step 6: Final answer
x = 10,280,152.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.