Finding the Fourth Proportional to 13,173,132.09, 18,180,824.73 and 7,590,309.76
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Solution
The fourth proportional to 13,173,132.09, 18,180,824.73 and 7,590,309.76 is: 10,475,723.65
Step by Step Solution
- Step 1: Write the proportion equation
13,173,132.09 : 18,180,824.73 = 7,590,309.76 : x - Step 2: Convert to fraction form
13,173,132.09/18,180,824.73 = 7,590,309.76/x - Step 3: Cross multiply
13,173,132.09x = 18,180,824.73 × 7,590,309.76 - Step 4: Simplify right side
13,173,132.09x = 137,998,091,392,968.36 - Step 5: Solve for x
x = 137,998,091,392,968.36/13,173,132.09 - Step 6: Final answer
x = 10,475,723.65
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1.5x scale
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.