Finding the Fourth Proportional to 13,516,965.97, 18,653,028.49 and 7,935,122.86
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Solution
The fourth proportional to 13,516,965.97, 18,653,028.49 and 7,935,122.86 is: 10,950,243.80
Step by Step Solution
- Step 1: Write the proportion equation
13,516,965.97 : 18,653,028.49 = 7,935,122.86 : x - Step 2: Convert to fraction form
13,516,965.97/18,653,028.49 = 7,935,122.86/x - Step 3: Cross multiply
13,516,965.97x = 18,653,028.49 × 7,935,122.86 - Step 4: Simplify right side
13,516,965.97x = 148,014,072,779,230.28 - Step 5: Solve for x
x = 148,014,072,779,230.28/13,516,965.97 - Step 6: Final answer
x = 10,950,243.80
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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.