Finding the Fourth Proportional to 19,415,246.80, 29,164,860.60 and 13,746,542.80
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Solution
The fourth proportional to 19,415,246.80, 29,164,860.60 and 13,746,542.80 is: 20,649,544.59
Step by Step Solution
- Step 1: Write the proportion equation
19,415,246.80 : 29,164,860.60 = 13,746,542.80 : x - Step 2: Convert to fraction form
19,415,246.80/29,164,860.60 = 13,746,542.80/x - Step 3: Cross multiply
19,415,246.80x = 29,164,860.60 × 13,746,542.80 - Step 4: Simplify right side
19,415,246.80x = 400,916,004,493,933.75 - Step 5: Solve for x
x = 400,916,004,493,933.75/19,415,246.80 - Step 6: Final answer
x = 20,649,544.59
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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.