Finding the Fourth Proportional to 18,613,431.99, 25,686,534.98 and 10,464,669.99
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Solution
The fourth proportional to 18,613,431.99, 25,686,534.98 and 10,464,669.99 is: 14,441,243.93
Step by Step Solution
- Step 1: Write the proportion equation
18,613,431.99 : 25,686,534.98 = 10,464,669.99 : x - Step 2: Convert to fraction form
18,613,431.99/25,686,534.98 = 10,464,669.99/x - Step 3: Cross multiply
18,613,431.99x = 25,686,534.98 × 10,464,669.99 - Step 4: Simplify right side
18,613,431.99x = 268,801,111,778,452.94 - Step 5: Solve for x
x = 268,801,111,778,452.94/18,613,431.99 - Step 6: Final answer
x = 14,441,243.93
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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.