Finding the Fourth Proportional to 18,430,907.51, 25,434,663.18 and 10,282,145.51
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Solution
The fourth proportional to 18,430,907.51, 25,434,663.18 and 10,282,145.51 is: 14,189,366.84
Step by Step Solution
- Step 1: Write the proportion equation
18,430,907.51 : 25,434,663.18 = 10,282,145.51 : x - Step 2: Convert to fraction form
18,430,907.51/25,434,663.18 = 10,282,145.51/x - Step 3: Cross multiply
18,430,907.51x = 25,434,663.18 × 10,282,145.51 - Step 4: Simplify right side
18,430,907.51x = 261,522,907,814,599.31 - Step 5: Solve for x
x = 261,522,907,814,599.31/18,430,907.51 - Step 6: Final answer
x = 14,189,366.84
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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.