Finding the Fourth Proportional to 13,549,524.98, 18,697,860.69 and 7,669,032.98
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Solution
The fourth proportional to 13,549,524.98, 18,697,860.69 and 7,669,032.98 is: 10,582,991.69
Step by Step Solution
- Step 1: Write the proportion equation
13,549,524.98 : 18,697,860.69 = 7,669,032.98 : x - Step 2: Convert to fraction form
13,549,524.98/18,697,860.69 = 7,669,032.98/x - Step 3: Cross multiply
13,549,524.98x = 18,697,860.69 × 7,669,032.98 - Step 4: Simplify right side
13,549,524.98x = 143,394,510,287,055.56 - Step 5: Solve for x
x = 143,394,510,287,055.56/13,549,524.98 - Step 6: Final answer
x = 10,582,991.69
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1.5x scale
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.