Finding the Fourth Proportional to 13,113,511.58, 18,094,388.09 and 8,408,022.09
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Solution
The fourth proportional to 13,113,511.58, 18,094,388.09 and 8,408,022.09 is: 11,601,622.79
Step by Step Solution
- Step 1: Write the proportion equation
13,113,511.58 : 18,094,388.09 = 8,408,022.09 : x - Step 2: Convert to fraction form
13,113,511.58/18,094,388.09 = 8,408,022.09/x - Step 3: Cross multiply
13,113,511.58x = 18,094,388.09 × 8,408,022.09 - Step 4: Simplify right side
13,113,511.58x = 152,138,014,723,712.81 - Step 5: Solve for x
x = 152,138,014,723,712.81/13,113,511.58 - Step 6: Final answer
x = 11,601,622.79
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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.