Finding the Fourth Proportional to 14,775,913.60, 20,389,206.72 and 8,579,749.12
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Solution
The fourth proportional to 14,775,913.60, 20,389,206.72 and 8,579,749.12 is: 11,839,151.42
Step by Step Solution
- Step 1: Write the proportion equation
14,775,913.60 : 20,389,206.72 = 8,579,749.12 : x - Step 2: Convert to fraction form
14,775,913.60/20,389,206.72 = 8,579,749.12/x - Step 3: Cross multiply
14,775,913.60x = 20,389,206.72 × 8,579,749.12 - Step 4: Simplify right side
14,775,913.60x = 174,934,278,413,418.06 - Step 5: Solve for x
x = 174,934,278,413,418.06/14,775,913.60 - Step 6: Final answer
x = 11,839,151.42
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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.