Finding the Fourth Proportional to 23,163,316.99, 31,965,415.11 and 12,850,040.20
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Solution
The fourth proportional to 23,163,316.99, 31,965,415.11 and 12,850,040.20 is: 17,733,076.37
Step by Step Solution
- Step 1: Write the proportion equation
23,163,316.99 : 31,965,415.11 = 12,850,040.20 : x - Step 2: Convert to fraction form
23,163,316.99/31,965,415.11 = 12,850,040.20/x - Step 3: Cross multiply
23,163,316.99x = 31,965,415.11 × 12,850,040.20 - Step 4: Simplify right side
23,163,316.99x = 410,756,869,173,187.38 - Step 5: Solve for x
x = 410,756,869,173,187.38/23,163,316.99 - Step 6: Final answer
x = 17,733,076.37
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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.