Finding the Fourth Proportional to 13,605,474.96, 18,775,553.76 and 7,493,903.46
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Solution
The fourth proportional to 13,605,474.96, 18,775,553.76 and 7,493,903.46 is: 10,341,585.85
Step by Step Solution
- Step 1: Write the proportion equation
13,605,474.96 : 18,775,553.76 = 7,493,903.46 : x - Step 2: Convert to fraction form
13,605,474.96/18,775,553.76 = 7,493,903.46/x - Step 3: Cross multiply
13,605,474.96x = 18,775,553.76 × 7,493,903.46 - Step 4: Simplify right side
13,605,474.96x = 140,702,187,285,480.02 - Step 5: Solve for x
x = 140,702,187,285,480.02/13,605,474.96 - Step 6: Final answer
x = 10,341,585.85
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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.