Finding the Fourth Proportional to 11,275,107.56, 15,559,658.98 and 6,446,312.68
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Solution
The fourth proportional to 11,275,107.56, 15,559,658.98 and 6,446,312.68 is: 8,895,917.53
Step by Step Solution
- Step 1: Write the proportion equation
11,275,107.56 : 15,559,658.98 = 6,446,312.68 : x - Step 2: Convert to fraction form
11,275,107.56/15,559,658.98 = 6,446,312.68/x - Step 3: Cross multiply
11,275,107.56x = 15,559,658.98 × 6,446,312.68 - Step 4: Simplify right side
11,275,107.56x = 100,302,426,979,249.86 - Step 5: Solve for x
x = 100,302,426,979,249.86/11,275,107.56 - Step 6: Final answer
x = 8,895,917.53
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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.