Finding the Fourth Proportional to 13,580,653.87, 20,370,986.30 and 3,345,712.75
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Solution
The fourth proportional to 13,580,653.87, 20,370,986.30 and 3,345,712.75 is: 5,018,570.48
Step by Step Solution
- Step 1: Write the proportion equation
13,580,653.87 : 20,370,986.30 = 3,345,712.75 : x - Step 2: Convert to fraction form
13,580,653.87/20,370,986.30 = 3,345,712.75/x - Step 3: Cross multiply
13,580,653.87x = 20,370,986.30 × 3,345,712.75 - Step 4: Simplify right side
13,580,653.87x = 68,155,468,577,256.77 - Step 5: Solve for x
x = 68,155,468,577,256.77/13,580,653.87 - Step 6: Final answer
x = 5,018,570.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.