Finding the Fourth Proportional to 18,303,427.71, 25,257,886.16 and 10,043,289.09
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Solution
The fourth proportional to 18,303,427.71, 25,257,886.16 and 10,043,289.09 is: 13,859,275.79
Step by Step Solution
- Step 1: Write the proportion equation
18,303,427.71 : 25,257,886.16 = 10,043,289.09 : x - Step 2: Convert to fraction form
18,303,427.71/25,257,886.16 = 10,043,289.09/x - Step 3: Cross multiply
18,303,427.71x = 25,257,886.16 × 10,043,289.09 - Step 4: Simplify right side
18,303,427.71x = 253,672,252,456,973.56 - Step 5: Solve for x
x = 253,672,252,456,973.56/18,303,427.71 - Step 6: Final answer
x = 13,859,275.79
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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.