Finding the Fourth Proportional to 13,485,489.74, 18,594,074.31 and 10,899,172.70
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Solution
The fourth proportional to 13,485,489.74, 18,594,074.31 and 10,899,172.70 is: 15,028,006.47
Step by Step Solution
- Step 1: Write the proportion equation
13,485,489.74 : 18,594,074.31 = 10,899,172.70 : x - Step 2: Convert to fraction form
13,485,489.74/18,594,074.31 = 10,899,172.70/x - Step 3: Cross multiply
13,485,489.74x = 18,594,074.31 × 10,899,172.70 - Step 4: Simplify right side
13,485,489.74x = 202,660,027,101,323.31 - Step 5: Solve for x
x = 202,660,027,101,323.31/13,485,489.74 - Step 6: Final answer
x = 15,028,006.47
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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.