Finding the Fourth Proportional to 18,994,012.92, 28,491,030.05 and 13,339,480.68
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Solution
The fourth proportional to 18,994,012.92, 28,491,030.05 and 13,339,480.68 is: 20,009,228.51
Step by Step Solution
- Step 1: Write the proportion equation
18,994,012.92 : 28,491,030.05 = 13,339,480.68 : x - Step 2: Convert to fraction form
18,994,012.92/28,491,030.05 = 13,339,480.68/x - Step 3: Cross multiply
18,994,012.92x = 28,491,030.05 × 13,339,480.68 - Step 4: Simplify right side
18,994,012.92x = 380,055,544,838,577.06 - Step 5: Solve for x
x = 380,055,544,838,577.06/18,994,012.92 - Step 6: Final answer
x = 20,009,228.51
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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.