Finding the Fourth Proportional to 18,887,920.08, 26,064,559.80 and 11,155,465.68
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Solution
The fourth proportional to 18,887,920.08, 26,064,559.80 and 11,155,465.68 is: 15,394,087.92
Step by Step Solution
- Step 1: Write the proportion equation
18,887,920.08 : 26,064,559.80 = 11,155,465.68 : x - Step 2: Convert to fraction form
18,887,920.08/26,064,559.80 = 11,155,465.68/x - Step 3: Cross multiply
18,887,920.08x = 26,064,559.80 × 11,155,465.68 - Step 4: Simplify right side
18,887,920.08x = 290,762,302,313,207.69 - Step 5: Solve for x
x = 290,762,302,313,207.69/18,887,920.08 - Step 6: Final answer
x = 15,394,087.92
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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.