Finding the Fourth Proportional to 19,193,472.49, 28,790,208.74 and 6,413,977.20
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Solution
The fourth proportional to 19,193,472.49, 28,790,208.74 and 6,413,977.20 is: 9,620,965.79
Step by Step Solution
- Step 1: Write the proportion equation
19,193,472.49 : 28,790,208.74 = 6,413,977.20 : x - Step 2: Convert to fraction form
19,193,472.49/28,790,208.74 = 6,413,977.20/x - Step 3: Cross multiply
19,193,472.49x = 28,790,208.74 × 6,413,977.20 - Step 4: Simplify right side
19,193,472.49x = 184,659,742,325,619.97 - Step 5: Solve for x
x = 184,659,742,325,619.97/19,193,472.49 - Step 6: Final answer
x = 9,620,965.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.