Finding the Fourth Proportional to 13,471,605.99, 18,590,823.73 and 7,276,652.67
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Solution
The fourth proportional to 13,471,605.99, 18,590,823.73 and 7,276,652.67 is: 10,041,784.72
Step by Step Solution
- Step 1: Write the proportion equation
13,471,605.99 : 18,590,823.73 = 7,276,652.67 : x - Step 2: Convert to fraction form
13,471,605.99/18,590,823.73 = 7,276,652.67/x - Step 3: Cross multiply
13,471,605.99x = 18,590,823.73 × 7,276,652.67 - Step 4: Simplify right side
13,471,605.99x = 135,278,967,154,103.61 - Step 5: Solve for x
x = 135,278,967,154,103.61/13,471,605.99 - Step 6: Final answer
x = 10,041,784.72
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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.